Hey Product Hunt! I built PDFGeek because every time I needed to merge two PDFs I ended up on some site that wanted me to upload a bank statement to a server I know nothing about, and then told me the free tier was three tasks an hour. It's a desktop app, so your documents never leave your machine. That also means none of the limits — merge fifty files if you want. Completely free: no Pro tier, no telemetry, no bundled offers. Built with Avalonia UI on .NET 8 and PDFsharp. Every PDF operation lives in a service layer with no UI dependencies, so it can be tested properly — there are 29 smoke checks that run against real PDF files rather than mocks. Page ranges turn out to be a deceptively nasty parsing problem once you allow open-ended ranges, duplicates and out-of-order input. One thing I'd flag honestly: it isn't code-signed, so Windows SmartScreen warns on first run. A certificate costs real money annually and I'd rather not put that behind a free tool. SHA256 checksums are published with every release and the source is public. Would love feedback, especially on the page-range parser and the watermark controls. Happy to answer anything about the build.

PDFGeek

Free offline PDF toolkit for Windows, nothing uploaded

Free offline PDF toolkit for Windows, nothing uploaded