Combine multiple PDFs into one — processed in your browser, files never leave your device
100% private — your PDFs are processed inside your browser and never uploaded to any server.
Select two or more PDF files above (in the order you want them combined) and click Merge — you get a single PDF containing every page of every file, ready to download. Unlike almost every other online PDF merger, this one never uploads your files: the merging happens inside your browser using JavaScript, so contracts, bank statements, ID documents and client files stay on your device from start to finish.
Merging PDFs is a daily need: combining scanned pages into one document, assembling loan or visa application packets, joining invoices for accounting, putting a cover letter and resume into one file, or collecting signed pages back into a contract. There's no watermark on the output, no signup, no daily limit and no practical file-size cap beyond your device's memory.
Files merge in the order you select them — use Ctrl/Cmd-click to pick them in sequence. Password-protected PDFs must be unlocked first (the tool will tell you if one is encrypted). The output keeps each page exactly as it was — no recompression, no quality loss.