PyDFile

PyDFile is a desktop PDF tool built in Python and packaged as a standalone Windows executable. The core idea is that it runs entirely on your machine with no internet connection needed, no files uploaded to a server, and nothing leaving the computer. Most online PDF tools require an internet connection to use or for you to hand your documents to a third party, which matters when the files are private.

The app covers 10 tools: merging multiple PDFs into one, splitting a PDF into separate pages or ranges, reordering pages, compressing file size, adding watermarks, adding page numbers, password-protecting a PDF, unlocking a password-protected PDF (if you own it), converting between PDF and image formats, and extracting all text content from a PDF. Each tool gets its own page in the interface.

The interface is built with CustomTkinter, which handles dark and light mode natively. PDF manipulation goes through PyMuPDF for most operations and pikepdf for anything password-related, since the 2 libraries handle different aspects of the PDF spec more cleanly. The codebase splits into a core layer for PDF and image logic, a UI layer for reusable interface components, and a utilities layer for constants and file helpers, so adding a new tool means writing the logic and dropping in a new page without touching the rest.

The .exe is built with PyInstaller so anyone on Windows can run it without installing Python or any dependencies.