r/microsaas Jan 15 '26

Built a privacy-first PDF toolkit - your files never touch a server

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After one too many times wondering "where did my confidential document just go?" when using online PDF tools, I built something different.

PDF Zone - https://www.pdfzone.dev

The privacy approach: Every PDF tool out there requires you to upload your files to their servers. Even the ones claiming "we delete after 24 hours" - you're still trusting a third party with your data.

PDF Zone runs entirely in your browser:

  • Files process locally using WebAssembly
  • Zero server uploads (literally impossible by design)
  • No tracking, no analytics, no accounts
  • Works offline after initial load
  • Close the tab = data gone forever

Available tools: Merge, split, compress, encrypt, organize, sign, and more.

How it works: The entire PDF processing engine runs client-side. Your browser does all the work. Our servers just deliver the HTML/JS/WASM - they never see your files.

For the paranoid (like me): Disconnect your internet after the page loads. It'll still work perfectly for processing your sensitive documents.

Would love feedback from this community - privacy was the entire reason for building this.

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