Merge PDF
- No Sign-up
- 100% Free
- Zero Server Data
Drop in two or more PDFs and get one, in the order you arrange them. The files are read and rewritten by your browser, so a contract or a bank statement never leaves the machine. A file whose internal index is damaged is repaired on the way through, because the index is rebuilt from scratch rather than copied.
1 · Your PDFs
No files yet.
Frequently asked questions
Are my documents uploaded?
No. Your browser reads each PDF, copies the pages it needs and writes a new file, all locally. The site’s security policy sets connect-src ‘none’, so the browser blocks network requests from these pages, meaning a document could not be sent even if the code tried. That matters more here than on most pages, because the files people merge are contracts, statements and scans of identity documents.
Does merging lose quality?
No. The pages are copied object by object, exactly as they were, along with their fonts and images. Nothing is re-encoded, so the result is the same size and the same sharpness as the parts.
Can it open a PDF that other tools call damaged?
Often, yes. A PDF carries an index of where everything is, and that index breaks easily. Something in the file’s path decides it is text and rewrites the line endings, and every position in the index is then wrong. This tool falls back to scanning the file, which is what a viewer does, and the file it writes has a fresh index. So a damaged file usually comes out repaired.
What about password-protected files?
They are refused, by name rather than half-read. Removing protection from a document is a different thing from combining documents, and doing it quietly inside a merge tool would be the wrong place for it.
Is there a limit on the number of files?
Only your machine’s memory. Everything happens in the browser tab, so very large scans are the practical limit rather than any rule of ours.