This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
PDFCatalyst
Browser-only PDF editor — your files never leave the tab
Edit PDFs entirely in your browser — no upload, no signup. Merge, split, sign, fill forms, redact, edit text, compress, watermark, image↔PDF. 24 tools. Free. Built with pdf.js + pdf-lib + IndexedDB. Your files literally never leave the tab. EN + VI.
Hey Product Hunt 👋
Mark here — solo maker. Why I built this:
Every "free online PDF editor" uploads your file to their server. The privacy policies all say "deleted in 1 hour" but you have to trust them. PDFCatalyst is the version where "didn't upload" is verifiable in DevTools, not promised in a policy.
24 tools, all client-side: merge, split, compress, sign (draw/type/upload), fill AcroForms with a saved profile that auto-fills name/address/KYC across any form, redact, edit existing text, watermark, page numbers, image↔PDF, deskew, QR stamp. EN + VI.
Stack: React 19 + pdf.js + pdf-lib + IndexedDB. ~150 KB initial; heavy engines lazy-load per tool.
Honest limits: encrypted PDFs come back rasterised after unlock (pdf-lib quirk). Files >100 MB hit browser memory limits. No server-side OCR.
Free, no signup, no paywall. Would love feedback — especially on the autofill profile flow, and any Vietnamese government form that trips up the AcroForm detection.
Thanks 🙏
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About PDFCatalyst on Product Hunt
“Browser-only PDF editor — your files never leave the tab”
PDFCatalyst was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #72 on the daily leaderboard. Edit PDFs entirely in your browser — no upload, no signup. Merge, split, sign, fill forms, redact, edit text, compress, watermark, image↔PDF. 24 tools. Free. Built with pdf.js + pdf-lib + IndexedDB. Your files literally never leave the tab. EN + VI.
PDFCatalyst was featured in Design Tools (260.2k followers), Productivity (652.3k followers) and Privacy (11.1k followers) on Product Hunt. Together, these topics include over 178.6k products, making this a competitive space to launch in.
Who hunted PDFCatalyst?
PDFCatalyst was hunted by pdfcatalyst. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how PDFCatalyst stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
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