| Author: | Antti Kaihola |
|---|
Convert two supposedly very similar PDF files to 150 dpi PNG images for each page. Overlay each pair of corresponding pages on top of each other while turning black into red in the bottom one.
The resulting PNG files emphasize any differences in the two PDF files.
Convert all text (or other font symbols) in a PDF file to curves.
Combine multiple bitmap images into a multi-page PDF.