diff --git a/bingus/src/doc.rs b/bingus/src/doc.rs
index 632450e..abcf649 100644
--- a/bingus/src/doc.rs
+++ b/bingus/src/doc.rs
@@ -1,2 +1,2 @@
-pub use printpdf::PdfDocument;
+pub use printpdf;
 mod pdf;
diff --git a/bong/Cargo.toml b/bong/Cargo.toml
index 59d66eb..4a4018a 100644
--- a/bong/Cargo.toml
+++ b/bong/Cargo.toml
@@ -11,5 +11,6 @@ keywords.workspace = true
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+anyhow = "1.0.97"
 bingus = { path = "../bingus" }
 clap = { version = "4.5.32", features = ["derive"] }
diff --git a/bong/src/main.rs b/bong/src/main.rs
index 85a68a8..fab8ebf 100644
--- a/bong/src/main.rs
+++ b/bong/src/main.rs
@@ -1,31 +1,27 @@
+use std::fs::File;
+
+use anyhow::{anyhow, Context, Error};
 use bingus::{
-    img::{Dimensions, RgbImage},
-    snd::RawSamples,
-    Bendable, DynamicBendable, OpenError,
+    doc::printpdf::{FontId, Op, PdfDocument, TextItem},
+    Bendable,
 };
 use clap::Parser;
 use cli::Cli;
 
 mod cli;
 
-fn main() -> Result<(), OpenError> {
+fn main() -> Result<(), Error> {
     let args = Cli::parse();
-    if let DynamicBendable::Image(i) =
-        bingus::open(args.input_file)?.expect("could not open this file.")
-    {
-        let dimensions = Dimensions {
-            width: i.width(),
-            height: i.height(),
-        };
-        RawSamples::<u32>::bend_from(i, (), bingus::Crop::End)
-            .unwrap()
-            .map(|s| s.abs_diff(s.wrapping_neg()))
-            .bend_into::<RgbImage>(dimensions, bingus::Crop::End)
-            .unwrap()
-            .save(args.output_file)
-            .unwrap();
-    } else {
-        println!("Not an image! Sorry!");
-    }
+    File::open(args.input_file)
+        .context("opening file")?
+        .bend_into::<PdfDocument>((), Default::default())
+        .map_err(|e| anyhow!("parsing PDF: {e}"))?
+        .map(|t| Op::WriteText {
+            items: vec![TextItem::Text(String::from("h"))],
+            font: FontId::new(),
+        })
+        .bend_into::<File>(Box::new(args.output_file), Default::default())
+        .context("saving output file")?;
+
     Ok(())
 }