After uploading what felt like the 100th sensitive contract to a "free" PDF site, I realized I had no idea where those files were going. So I built BunnyConvert — 24 PDF tools that run entirely in your browser using JavaScript.
What It Does
24 tools so far:
- Sign PDF (with cursive fonts, drag-to-position)
- Merge / Split / Compress / Rotate
- JPG/PNG/HEIC → PDF
- PDF → Word/Excel/PowerPoint/Image
- Watermark, Protect, Unlock
- Image Resize, CSV ↔ JSON
The Stack
- Vanilla JS frontend (no React/Vue)
- pdf-lib for PDF manipulation
- pdf.js for rendering
- heic2any for HEIC decoding
- Capacitor for Android wrapper
- Supabase for opt-out analytics
Privacy First
Everything runs client-side. Files never touch a server. You can verify in DevTools Network tab — zero outbound file requests.
Tricky Parts
- pdf-lib's StandardFonts don't support Turkish characters → had to embed custom TTF
- DocuSign-like signature placement in vanilla JS with both touch + mouse drag
- AdMob production approval is brutal for new publishers (~2-4 weeks of "limited ad serving")
Try It
Web: https://bunnyconvert.com
Android: Google Play (search BunnyConvert)
iOS: in submission
Free with daily credits. Pro is $4.99/mo for unlimited + ad-free in mobile.
Open to feedback or questions.
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