OCaml parser and validator for PDF file structure, built by the French national cybersecurity agency (ANSSI) specifically for security-focused PDF analysis rather than general-purpose PDF processing. Offers CLI analysis commands and an interactive console for exploring a PDF's object graph directly, aimed at spotting structural anomalies (malformed objects, suspicious cross-references) that a normal PDF reader would silently paper over or reject outright.
Command-line PDF manipulation toolkit: split, merge, and extract pages while preserving bookmarks; encrypt/decrypt (AES 128/256); scale, rotate, crop, and flip pages; stamp text, watermarks, and page numbers; manage annotations, metadata, and file attachments; rasterize pages to images; and produce PDF/UA-tagged output.