A few tweaks

natives/caption.cc

@@ -24,7 +24,7 @@ Napi::Value Caption(const Napi::CallbackInfo &info) {
 
     int width = in.width();
     int size = width / 10;
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
     int textWidth = width - ((width / 25) * 2);
 
@@ -49,14 +49,14 @@ Napi::Value Caption(const Napi::CallbackInfo &info) {
     vector<VImage> img;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
       VImage frame = captionImage.join(
           img_frame, VIPS_DIRECTION_VERTICAL,
           VImage::option()->set("background", 0xffffff)->set("expand", true));
       img.push_back(frame);
     }
     VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
-    final.set(VIPS_META_PAGE_HEIGHT, page_height + captionImage.height());
+    final.set(VIPS_META_PAGE_HEIGHT, pageHeight + captionImage.height());
 
     void *buf;
     size_t length;

natives/caption2.cc

@@ -26,7 +26,7 @@ Napi::Value CaptionTwo(const Napi::CallbackInfo &info) {
 
     int width = in.width();
     int size = width / 13;
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
     int textWidth = width - ((width / 25) * 2);
 
@@ -50,7 +50,7 @@ Napi::Value CaptionTwo(const Napi::CallbackInfo &info) {
     vector<VImage> img;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
       VImage frame =
           (top ? captionImage : img_frame)
               .join(top ? img_frame : captionImage, VIPS_DIRECTION_VERTICAL,
@@ -60,7 +60,7 @@ Napi::Value CaptionTwo(const Napi::CallbackInfo &info) {
       img.push_back(frame);
     }
     VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
-    final.set(VIPS_META_PAGE_HEIGHT, page_height + captionImage.height());
+    final.set(VIPS_META_PAGE_HEIGHT, pageHeight + captionImage.height());
 
     void *buf;
     size_t length;

natives/crop.cc

@@ -21,14 +21,14 @@ Napi::Value Crop(const Napi::CallbackInfo &info) {
             .colourspace(VIPS_INTERPRETATION_sRGB);
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
 
     vector<VImage> img;
     int finalHeight = 0;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
       int frameWidth = img_frame.width();
       int frameHeight = img_frame.height();
       bool widthOrHeight = frameWidth / frameHeight >= 1;

natives/deepfry.cc

@@ -21,24 +21,49 @@ Napi::Value Deepfry(const Napi::CallbackInfo &info) {
         VImage::new_from_buffer(data.Data(), data.Length(), "",
                                 type == "gif" ? options->set("n", -1) : options)
             .colourspace(VIPS_INTERPRETATION_sRGB);
-    if (!in.has_alpha()) in = in.bandjoin(255);
+    if (!in.has_alpha())
+      in = in.bandjoin(255);
 
-    int page_height = vips_image_get_page_height(in.get_image());
+    int width = in.width();
+    int pageHeight = vips_image_get_page_height(in.get_image());
+    int totalHeight = in.height();
+    int n_pages = vips_image_get_n_pages(in.get_image());
 
     VImage fried = (in * 1.3 - (255.0 * 1.3 - 255.0)) * 1.5;
-    void *jpgBuf;
+
-    size_t jpgLength;
+    VImage final;
-    fried.write_to_buffer(".jpg", &jpgBuf, &jpgLength,
+    if (totalHeight > 65500 && type == "gif") {
-                          VImage::option()->set("Q", 1)->set("strip", true));
+      vector<VImage> img;
-    VImage final = VImage::new_from_buffer(jpgBuf, jpgLength, "");
+        for (int i = 0; i < n_pages; i++) {
-    final.set(VIPS_META_PAGE_HEIGHT, page_height);
+          VImage img_frame = in.crop(0, i * pageHeight, width, pageHeight);
-    if (type == "gif") final.set("delay", fried.get_array_int("delay"));
+          void *jpgBuf;
+          size_t jpgLength;
+          img_frame.write_to_buffer(
+              ".jpg", &jpgBuf, &jpgLength,
+              VImage::option()->set("Q", 1)->set("strip", true));
+          VImage jpeged = VImage::new_from_buffer(jpgBuf, jpgLength, "");
+          jpeged.set(VIPS_META_PAGE_HEIGHT, pageHeight);
+          jpeged.set("delay", in.get_array_int("delay"));
+          img.push_back(jpeged);
+        }
+        final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
+        final.set(VIPS_META_PAGE_HEIGHT, pageHeight);
+    } else {
+      void *jpgBuf;
+      size_t jpgLength;
+      fried.write_to_buffer(".jpg", &jpgBuf, &jpgLength,
+                            VImage::option()->set("Q", 1)->set("strip", true));
+      final = VImage::new_from_buffer(jpgBuf, jpgLength, "");
+      final.set(VIPS_META_PAGE_HEIGHT, pageHeight);
+      if (type == "gif")
+        final.set("delay", fried.get_array_int("delay"));
+    }
 
     void *buf;
     size_t length;
-    final.write_to_buffer(
+    final.write_to_buffer(("." + type).c_str(), &buf, &length,
-        ("." + type).c_str(), &buf, &length,
+                          type == "gif" ? VImage::option()->set("dither", 0)
-        type == "gif" ? VImage::option()->set("dither", 0) : 0);
+                                        : 0);
 
     vips_thread_shutdown();
 

natives/flag.cc

@@ -24,7 +24,7 @@ Napi::Value Flag(const Napi::CallbackInfo &info) {
     if (!in.has_alpha()) in = in.bandjoin(255);
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
 
     string assetPath = basePath + overlay;
@@ -32,7 +32,7 @@ Napi::Value Flag(const Napi::CallbackInfo &info) {
     VImage overlayImage = overlayInput.resize(
         (double)width / (double)overlayInput.width(),
         VImage::option()->set(
-            "vscale", (double)page_height / (double)overlayInput.height()));
+            "vscale", (double)pageHeight / (double)overlayInput.height()));
     if (!overlayImage.has_alpha()) {
       overlayImage = overlayImage.bandjoin(127);
     } else {
@@ -43,14 +43,14 @@ Napi::Value Flag(const Napi::CallbackInfo &info) {
     vector<VImage> img;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
       VImage composited =
           img_frame.composite2(overlayImage, VIPS_BLEND_MODE_OVER);
       img.push_back(composited);
     }
 
     VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
-    final.set(VIPS_META_PAGE_HEIGHT, page_height);
+    final.set(VIPS_META_PAGE_HEIGHT, pageHeight);
 
     void *buf;
     size_t length;

natives/flip.cc

@@ -29,15 +29,15 @@ Napi::Value Flip(const Napi::CallbackInfo &info) {
     } else if (type == "gif") {
       // libvips gif handling is both a blessing and a curse
       vector<VImage> img;
-      int page_height = vips_image_get_page_height(in.get_image());
+      int pageHeight = vips_image_get_page_height(in.get_image());
       int n_pages = vips_image_get_n_pages(in.get_image());
       for (int i = 0; i < n_pages; i++) {
-        VImage img_frame = in.crop(0, i * page_height, in.width(), page_height);
+        VImage img_frame = in.crop(0, i * pageHeight, in.width(), pageHeight);
         VImage flipped = img_frame.flip(VIPS_DIRECTION_VERTICAL);
         img.push_back(flipped);
       }
       out = VImage::arrayjoin(img, VImage::option()->set("across", 1));
-      out.set(VIPS_META_PAGE_HEIGHT, page_height);
+      out.set(VIPS_META_PAGE_HEIGHT, pageHeight);
     } else {
       out = in.flip(VIPS_DIRECTION_VERTICAL);
     }

natives/freeze.cc

@@ -58,11 +58,11 @@ Napi::Value Freeze(const Napi::CallbackInfo &info) {
                       .colourspace(VIPS_INTERPRETATION_sRGB);
       if (!in.has_alpha()) in = in.bandjoin(255);
 
-      int page_height = vips_image_get_page_height(in.get_image());
+      int pageHeight = vips_image_get_page_height(in.get_image());
       int n_pages = vips_image_get_n_pages(in.get_image());
       int framePos = clamp(frame, 0, (int)n_pages);
-      VImage out = in.crop(0, 0, in.width(), page_height * (framePos + 1));
+      VImage out = in.crop(0, 0, in.width(), pageHeight * (framePos + 1));
-      out.set(VIPS_META_PAGE_HEIGHT, page_height);
+      out.set(VIPS_META_PAGE_HEIGHT, pageHeight);
       out.set("loop", loop ? 0 : 1);
 
       void *buf;

natives/gamexplain.cc

@@ -26,17 +26,17 @@ Napi::Value Gamexplain(const Napi::CallbackInfo &info) {
     VImage tmpl = VImage::new_from_file(assetPath.c_str());
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
 
     vector<VImage> img;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
       VImage resized = img_frame
                            .resize(1181.0 / (double)width,
                                    VImage::option()->set(
-                                       "vscale", 571.0 / (double)page_height))
+                                       "vscale", 571.0 / (double)pageHeight))
                            .embed(10, 92, 1200, 675,
                                   VImage::option()->set("extend", "white"));
       VImage composited = resized.composite2(tmpl, VIPS_BLEND_MODE_OVER);

natives/globe.cc

@@ -25,10 +25,10 @@ Napi::Value Globe(const Napi::CallbackInfo &info) {
     if (!in.has_alpha()) in = in.bandjoin(255);
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = type == "gif" ? vips_image_get_n_pages(in.get_image()) : 30;
 
-    double size = min(width, page_height);
+    double size = min(width, pageHeight);
 
     string diffPath = basePath + "assets/images/globediffuse.png";
     VImage diffuse =
@@ -54,10 +54,10 @@ Napi::Value Globe(const Napi::CallbackInfo &info) {
     vector<VImage> img;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
       VImage resized = img_frame.resize(
           size / (double)width,
-          VImage::option()->set("vscale", size / (double)page_height));
+          VImage::option()->set("vscale", size / (double)pageHeight));
       VImage rolled = img_frame.wrap(
           VImage::option()->set("x", width * i / n_pages)->set("y", 0));
       VImage extracted = rolled.extract_band(0, VImage::option()->set("n", 3));

natives/jpeg.cc

@@ -24,24 +24,48 @@ Napi::Value Jpeg(const Napi::CallbackInfo &info) {
               data.Data(), data.Length(), "",
               VImage::option()->set("access", "sequential")->set("n", -1))
               .colourspace(VIPS_INTERPRETATION_sRGB);
-      if (!in.has_alpha()) in = in.bandjoin(255);
+      if (!in.has_alpha())
+        in = in.bandjoin(255);
 
-      int page_height = vips_image_get_page_height(in.get_image());
+      int width = in.width();
+      int pageHeight = vips_image_get_page_height(in.get_image());
+      int totalHeight = in.height();
+      int n_pages = vips_image_get_n_pages(in.get_image());
 
-      void *jpgBuf;
+      VImage final;
-      size_t jpgLength;
+
-      in.write_to_buffer(
+      if (totalHeight > 65500) {
-          ".jpg", &jpgBuf, &jpgLength,
+        vector<VImage> img;
-          VImage::option()->set("Q", quality)->set("strip", true));
+        for (int i = 0; i < n_pages; i++) {
-      VImage final = VImage::new_from_buffer(jpgBuf, jpgLength, "");
+          VImage img_frame = in.crop(0, i * pageHeight, width, pageHeight);
-      final.set(VIPS_META_PAGE_HEIGHT, page_height);
+          void *jpgBuf;
-      if (type == "gif") final.set("delay", in.get_array_int("delay"));
+          size_t jpgLength;
+          img_frame.write_to_buffer(
+              ".jpg", &jpgBuf, &jpgLength,
+              VImage::option()->set("Q", quality)->set("strip", true));
+          VImage jpeged = VImage::new_from_buffer(jpgBuf, jpgLength, "");
+          jpeged.set(VIPS_META_PAGE_HEIGHT, pageHeight);
+          jpeged.set("delay", in.get_array_int("delay"));
+          img.push_back(jpeged);
+        }
+        final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
+        final.set(VIPS_META_PAGE_HEIGHT, pageHeight);
+      } else {
+        void *jpgBuf;
+        size_t jpgLength;
+        in.write_to_buffer(
+            ".jpg", &jpgBuf, &jpgLength,
+            VImage::option()->set("Q", quality)->set("strip", true));
+        final = VImage::new_from_buffer(jpgBuf, jpgLength, "");
+        final.set(VIPS_META_PAGE_HEIGHT, pageHeight);
+        final.set("delay", in.get_array_int("delay"));
+      }
 
       void *buf;
       size_t length;
-      final.write_to_buffer(
+      final.write_to_buffer(("." + type).c_str(), &buf, &length,
-          ("." + type).c_str(), &buf, &length,
+                            type == "gif" ? VImage::option()->set("dither", 0)
-          type == "gif" ? VImage::option()->set("dither", 0) : 0);
+                                          : 0);
 
       vips_thread_shutdown();
 

natives/meme.cc

@@ -25,7 +25,7 @@ Napi::Value Meme(const Napi::CallbackInfo &info) {
     if (!in.has_alpha()) in = in.bandjoin(255);
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
     int size = width / 9;
     int dividedWidth = width / 1000;
@@ -106,7 +106,7 @@ Napi::Value Meme(const Napi::CallbackInfo &info) {
     vector<VImage> img;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
       if (top != "") {
         img_frame = img_frame.composite2(
             topText, VIPS_BLEND_MODE_OVER,
@@ -117,12 +117,12 @@ Napi::Value Meme(const Napi::CallbackInfo &info) {
             bottomText, VIPS_BLEND_MODE_OVER,
             VImage::option()
                 ->set("x", (width / 2) - (bottomText.width() / 2))
-                ->set("y", page_height - bottomText.height()));
+                ->set("y", pageHeight - bottomText.height()));
       }
       img.push_back(img_frame);
     }
     VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
-    final.set(VIPS_META_PAGE_HEIGHT, page_height);
+    final.set(VIPS_META_PAGE_HEIGHT, pageHeight);
 
     void *buf;
     size_t length;

natives/mirror.cc

@@ -32,12 +32,12 @@ Napi::Value Mirror(const Napi::CallbackInfo &info) {
       if (type == "gif") {
         // once again, libvips gif handling is both a blessing and a curse
         vector<VImage> img;
-        int page_height = vips_image_get_page_height(in.get_image());
+        int pageHeight = vips_image_get_page_height(in.get_image());
         int n_pages = vips_image_get_n_pages(in.get_image());
-        bool isOdd = page_height % 2;
+        bool isOdd = pageHeight % 2;
         for (int i = 0; i < n_pages; i++) {
-          int x = (i * page_height) + (first ? 0 : (page_height / 2));
+          int x = (i * pageHeight) + (first ? 0 : (pageHeight / 2));
-          VImage cropped = in.crop(0, x, in.width(), page_height / 2);
+          VImage cropped = in.crop(0, x, in.width(), pageHeight / 2);
           VImage flipped = cropped.flip(VIPS_DIRECTION_VERTICAL);
           VImage final = VImage::arrayjoin(
               {first ? cropped : flipped, first ? flipped : cropped},
@@ -45,7 +45,7 @@ Napi::Value Mirror(const Napi::CallbackInfo &info) {
           img.push_back(final);
         }
         out = VImage::arrayjoin(img, VImage::option()->set("across", 1));
-        out.set(VIPS_META_PAGE_HEIGHT, page_height - (isOdd ? 1 : 0));
+        out.set(VIPS_META_PAGE_HEIGHT, pageHeight - (isOdd ? 1 : 0));
       } else {
         VImage cropped = in.extract_area(0, 0, in.width(), in.height() / 2);
         VImage flipped = cropped.flip(VIPS_DIRECTION_VERTICAL);

natives/motivate.cc

@@ -26,7 +26,7 @@ Napi::Value Motivate(const Napi::CallbackInfo &info) {
 
     int width = in.width();
     int size = width / 5;
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
     int textWidth = width - ((width / 25) * 2);
 
@@ -61,13 +61,13 @@ Napi::Value Motivate(const Napi::CallbackInfo &info) {
     int height;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
 
       int borderSize = max(2, width / 66);
       int borderSize2 = borderSize * 0.5;
       VImage bordered =
           img_frame.embed(borderSize, borderSize, width + (borderSize * 2),
-                          page_height + (borderSize * 2),
+                          pageHeight + (borderSize * 2),
                           VImage::option()->set("extend", "black"));
       VImage bordered2 = bordered.embed(
           borderSize2, borderSize2, bordered.width() + (borderSize2 * 2),
@@ -75,7 +75,7 @@ Napi::Value Motivate(const Napi::CallbackInfo &info) {
           VImage::option()->set("extend", "white"));
 
       int addition = width / 8;
-      int sideAddition = page_height * 0.4;
+      int sideAddition = pageHeight * 0.4;
 
       VImage bordered3 = bordered2.embed(
           sideAddition / 2, addition / 2, bordered2.width() + sideAddition,

natives/reddit.cc

@@ -26,7 +26,7 @@ Napi::Value Reddit(const Napi::CallbackInfo &info) {
     VImage tmpl = VImage::new_from_file(assetPath.c_str());
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
 
     string captionText = "<span foreground=\"white\">" + text + "</span>";
@@ -47,13 +47,13 @@ Napi::Value Reddit(const Napi::CallbackInfo &info) {
     vector<VImage> img;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
       VImage frame = img_frame.join(watermark, VIPS_DIRECTION_VERTICAL,
                                     VImage::option()->set("expand", true));
       img.push_back(frame);
     }
     VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
-    final.set(VIPS_META_PAGE_HEIGHT, page_height + watermark.height());
+    final.set(VIPS_META_PAGE_HEIGHT, pageHeight + watermark.height());
 
     void *buf;
     size_t length;

natives/resize.cc

@@ -28,21 +28,21 @@ Napi::Value Resize(const Napi::CallbackInfo &info) {
     VImage out;
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
 
     int finalHeight;
     if (stretch) {
       out = in.resize(
           512.0 / (double)width,
-          VImage::option()->set("vscale", 512.0 / (double)page_height));
+          VImage::option()->set("vscale", 512.0 / (double)pageHeight));
       finalHeight = 512;
     } else if (wide) {
       out = in.resize(9.5, VImage::option()->set("vscale", 0.5));
-      finalHeight = page_height / 2;
+      finalHeight = pageHeight / 2;
     } else {
       out = in.resize(0.1).resize(
           10, VImage::option()->set("kernel", VIPS_KERNEL_NEAREST));
-      finalHeight = page_height;
+      finalHeight = pageHeight;
     }
     out.set(VIPS_META_PAGE_HEIGHT, finalHeight);
 

natives/reverse.cc

@@ -21,13 +21,13 @@ Napi::Value Reverse(const Napi::CallbackInfo &info) {
                     .colourspace(VIPS_INTERPRETATION_sRGB);
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
 
     vector<VImage> split;
     // todo: find a better way of getting individual frames (or at least getting the frames in reverse order)
     for (int i = 0; i < n_pages; i++) {
-      VImage img_frame = in.crop(0, i * page_height, width, page_height);
+      VImage img_frame = in.crop(0, i * pageHeight, width, pageHeight);
       split.push_back(img_frame);
     }
 
@@ -49,7 +49,7 @@ Napi::Value Reverse(const Napi::CallbackInfo &info) {
     }
 
     VImage final = VImage::arrayjoin(split, VImage::option()->set("across", 1));
-    final.set(VIPS_META_PAGE_HEIGHT, page_height);
+    final.set(VIPS_META_PAGE_HEIGHT, pageHeight);
     final.set("delay", delays);
 
     void *buf;

natives/snapchat.cc

@@ -25,7 +25,7 @@ Napi::Value Snapchat(const Napi::CallbackInfo &info) {
     if (!in.has_alpha()) in = in.bandjoin(255);
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
     int size = width / 20;
     int textWidth = width - ((width / 25) * 2);
@@ -54,14 +54,14 @@ Napi::Value Snapchat(const Napi::CallbackInfo &info) {
     vector<VImage> img;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
       img_frame = img_frame.composite2(
           textIn, VIPS_BLEND_MODE_OVER,
-          VImage::option()->set("x", 0)->set("y", page_height * pos));
+          VImage::option()->set("x", 0)->set("y", pageHeight * pos));
       img.push_back(img_frame);
     }
     VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
-    final.set(VIPS_META_PAGE_HEIGHT, page_height);
+    final.set(VIPS_META_PAGE_HEIGHT, pageHeight);
 
     void *buf;
     size_t length;

natives/speed.cc

@@ -22,16 +22,16 @@ void vipsRemove(Napi::Env *env, Napi::Object *result, Napi::Buffer<char> data,
   if (!in.has_alpha()) in = in.bandjoin(255);
 
   int width = in.width();
-  int page_height = vips_image_get_page_height(in.get_image());
+  int pageHeight = vips_image_get_page_height(in.get_image());
   int n_pages = vips_image_get_n_pages(in.get_image());
 
   vector<VImage> img;
   for (int i = 0; i < n_pages; i += speed) {
-    VImage img_frame = in.crop(0, i * page_height, width, page_height);
+    VImage img_frame = in.crop(0, i * pageHeight, width, pageHeight);
     img.push_back(img_frame);
   }
   VImage out = VImage::arrayjoin(img, VImage::option()->set("across", 1));
-  out.set(VIPS_META_PAGE_HEIGHT, page_height);
+  out.set(VIPS_META_PAGE_HEIGHT, pageHeight);
 
   void *buf;
   size_t length;

natives/uncaption.cc

@@ -25,24 +25,24 @@ Napi::Value Uncaption(const Napi::CallbackInfo &info) {
     if (!in.has_alpha()) in = in.bandjoin(255);
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
 
     VImage first =
-        in.crop(0, 0, 3, page_height).colourspace(VIPS_INTERPRETATION_B_W) >
+        in.crop(0, 0, 3, pageHeight).colourspace(VIPS_INTERPRETATION_B_W) >
         (255 * tolerance);
     int top, captionWidth, captionHeight;
     first.find_trim(&top, &captionWidth, &captionHeight);
 
     vector<VImage> img;
-    int newHeight = page_height - top;
+    int newHeight = pageHeight - top;
-    if (top == page_height) {
+    if (top == pageHeight) {
-      newHeight = page_height;
+      newHeight = pageHeight;
       top = 0;
     }
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          in.crop(0, (i * page_height) + top, width, newHeight);
+          in.crop(0, (i * pageHeight) + top, width, newHeight);
       img.push_back(img_frame);
     }
     VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));

natives/watermark.cc

@@ -40,7 +40,7 @@ Napi::Value Watermark(const Napi::CallbackInfo &info) {
     VImage watermark = VImage::new_from_file(merged.c_str());
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
 
     if (resize && append) {
@@ -48,11 +48,11 @@ Napi::Value Watermark(const Napi::CallbackInfo &info) {
     } else if (resize && yscale) {
       watermark = watermark.resize(
           (double)width / (double)watermark.width(),
-          VImage::option()->set("vscale", (double)(page_height * yscale) /
+          VImage::option()->set("vscale", (double)(pageHeight * yscale) /
                                               (double)watermark.height()));
     } else if (resize) {
       watermark =
-          watermark.resize((double)page_height / (double)watermark.height());
+          watermark.resize((double)pageHeight / (double)watermark.height());
     }
 
     int x = 0, y = 0;
@@ -67,19 +67,19 @@ Napi::Value Watermark(const Napi::CallbackInfo &info) {
         break;
       case 5:
         x = (width / 2) - (watermark.width() / 2);
-        y = (page_height / 2) - (watermark.height() / 2);
+        y = (pageHeight / 2) - (watermark.height() / 2);
         break;
       case 6:
         x = width - watermark.width();
-        y = (page_height / 2) - (watermark.height() / 2);
+        y = (pageHeight / 2) - (watermark.height() / 2);
         break;
       case 8:
         x = (width / 2) - (watermark.width() / 2);
-        y = page_height - watermark.height();
+        y = pageHeight - watermark.height();
         break;
       case 9:
         x = width - watermark.width();
-        y = page_height - watermark.height();
+        y = pageHeight - watermark.height();
         break;
     }
 
@@ -91,7 +91,7 @@ Napi::Value Watermark(const Napi::CallbackInfo &info) {
     VImage frame;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
       if (append) {
         VImage appended = img_frame.join(watermark, VIPS_DIRECTION_VERTICAL,
                                          VImage::option()->set("expand", true));
@@ -99,7 +99,7 @@ Napi::Value Watermark(const Napi::CallbackInfo &info) {
         img.push_back(appended);
       } else if (mc) {
         VImage padded =
-            img_frame.embed(0, 0, width, page_height + 15,
+            img_frame.embed(0, 0, width, pageHeight + 15,
                             VImage::option()->set("background", 0xffffff));
         VImage composited =
             padded.composite2(watermark, VIPS_BLEND_MODE_OVER,
@@ -113,10 +113,10 @@ Napi::Value Watermark(const Napi::CallbackInfo &info) {
         if (alpha) {
           if (i == 0) {
             contentAlpha = watermark.extract_band(0).embed(
-                x, y, width, page_height,
+                x, y, width, pageHeight,
                 VImage::option()->set("extend", "white"));
             frameAlpha = watermark.extract_band(1).embed(
-                x, y, width, page_height,
+                x, y, width, pageHeight,
                 VImage::option()->set("extend", "black"));
             bg =
                 frameAlpha.new_from_image({0, 0, 0}).copy(VImage::option()->set(
@@ -142,7 +142,7 @@ Napi::Value Watermark(const Napi::CallbackInfo &info) {
       }
     }
     VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
-    final.set(VIPS_META_PAGE_HEIGHT, page_height + addedHeight);
+    final.set(VIPS_META_PAGE_HEIGHT, pageHeight + addedHeight);
 
     void *buf;
     size_t length;

natives/whisper.cc

@@ -23,7 +23,7 @@ Napi::Value Whisper(const Napi::CallbackInfo &info) {
     if (!in.has_alpha()) in = in.bandjoin(255);
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
     int size = width / 6;
     int dividedWidth = width / 175;
@@ -66,16 +66,16 @@ Napi::Value Whisper(const Napi::CallbackInfo &info) {
     vector<VImage> img;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
       img_frame = img_frame.composite2(
           textImg, VIPS_BLEND_MODE_OVER,
           VImage::option()
               ->set("x", (width / 2) - (textImg.width() / 2))
-              ->set("y", (page_height / 2) - (textImg.height() / 2)));
+              ->set("y", (pageHeight / 2) - (textImg.height() / 2)));
       img.push_back(img_frame);
     }
     VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
-    final.set(VIPS_META_PAGE_HEIGHT, page_height);
+    final.set(VIPS_META_PAGE_HEIGHT, pageHeight);
 
     void *buf;
     size_t length;

natives/zamn.cc

@@ -23,7 +23,7 @@ Napi::Value Zamn(const Napi::CallbackInfo &info) {
     if (!in.has_alpha()) in = in.bandjoin(255);
 
     int width = in.width();
-    int page_height = vips_image_get_page_height(in.get_image());
+    int pageHeight = vips_image_get_page_height(in.get_image());
     int n_pages = vips_image_get_n_pages(in.get_image());
 
     string assetPath = basePath + "assets/images/zamn.png";
@@ -32,11 +32,11 @@ Napi::Value Zamn(const Napi::CallbackInfo &info) {
     vector<VImage> img;
     for (int i = 0; i < n_pages; i++) {
       VImage img_frame =
-          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+          type == "gif" ? in.crop(0, i * pageHeight, width, pageHeight) : in;
       VImage composited = tmpl.insert(
           img_frame.extract_band(0, VImage::option()->set("n", 3)).bandjoin(255).resize(
               303.0 / (double)width,
-              VImage::option()->set("vscale", 438.0 / (double)page_height)),
+              VImage::option()->set("vscale", 438.0 / (double)pageHeight)),
           310, 76);
       img.push_back(composited);
     }