Every online PDF tool that uploads your files creates a privacy risk. Here is the alternative: a full PDF editor that processes everything locally — zero uploads.
When you upload a PDF to an online tool, it travels to a remote server. Even with privacy promises, you cannot verify how files are handled, stored, or deleted.
pdfeditor.onl uses WebAssembly to run PDF libraries (pdf-lib, pdfjs, Tesseract) directly in your browser. Your file is read into local RAM, operations happen there, and the result downloads back to your device. Nothing ever leaves your computer.
Edit, sign, compress, merge, split, reorder, convert, compare, OCR, watermark, add page numbers, protect, unlock, repair, crop, rotate, add images — all without a single byte leaving your device.
Tip: To verify: open Chrome DevTools (F12) → Network tab → upload a PDF → confirm no outbound request sends your file data.
Open Chrome DevTools (F12), go to Network tab, upload a PDF, and watch requests. You will see no outbound request containing your file.
For most tasks, no. WebAssembly runs at near-native speed. Very large files may take slightly longer, but the privacy benefit is worth it.
Yes. All tools are completely free with no account required.