Free Merge PDF
Drag in your PDF files, rearrange them however you like, then merge them into a single PDF in seconds. Entirely in your browser.
Drop files here or browse
PDF · Multiple files · Max 100 MB
Your files never leave your device.
Frequently Asked Questions
Upload your PDFs to OCRFire's Merge PDF tool, drag them into the order you want, then click "Merge PDF." The combined file downloads instantly - no sign-up, no server upload, and no watermarks on the output.
There's no hard cap - you can merge as many PDFs as your browser's available memory allows. Most modern browsers handle dozens of files without issues. For very large PDFs, try merging in smaller batches.
No. OCRFire assembles the original page streams from each file rather than re-rendering them, so images, fonts, and layout are preserved exactly as they appear in the source documents.
Your files never leave your device - the merge operation runs entirely in your browser using PDF-lib. Nothing is sent to any server, so your documents stay completely private.