01 / Fast steps
- Drop or select two or more PDF files.
- Files are combined in the order you select them.
- Download the merged PDF.
Merge PDF
Drop two or more PDF files and get a single document back, in the order you added them. The merge happens inside your browser, so the files never leave your device and there is no size limit to run into.
drop your files anywhere in this area
Your files never leave your device.
PDF
02 / Best for
- Combining scanned pages into one document.
- Assembling a report from separate chapter PDFs.
- Merging invoices, contracts or forms into a single file to send.
- Joining documents you would rather not upload to a converter, such as anything with bank details or personal data in it.
03 / Why here
- Nothing is uploaded: the pages are copied inside your browser tab, so a contract or a medical record stays on your machine.
- No file-size cap and no daily quota, because there is no server to protect.
- Keeps the original page order and quality of each file: text stays selectable and images keep their resolution.
04 / Keep in mind
- Requires at least two PDF files.
- Password-protected files have to be unlocked first, since their contents cannot be read while encrypted.
- Very large merges are bounded by your device memory rather than by a server limit.
Tool connections
Related tools
Just converted a file here? Click a tool that reads it and your new file is handed over automatically, no re-upload needed.
01Sign PDFDraw your signature and place it on any page of a PDF, entirely in your browser: the document is never uploaded.02Rotate PDFRotate every page of a PDF by 90, 180 or 270 degrees, entirely in your browser.03Organize PDFReorder, rotate and delete PDF pages visually, entirely in your browser, so the file is never uploaded.04Watermark PDFStamp a diagonal text watermark like CONFIDENTIAL or DRAFT across every page of a PDF, in your browser.05PDF to TextExtract all text from PDF files, with automatic OCR fallback for scanned documents, right in your browser.06OCR PDFRun OCR on scanned PDF documents and get the recognized text, free and entirely in your browser.07Protect PDFAdd a password to a PDF with AES-256 encryption, entirely in your browser: neither the file nor the password is ever uploaded.08Remove PDF PasswordRemove the password from a PDF you can open and save an unlocked copy, entirely in your browser.
Good to know
Questions & answers
01Does merging PDFs reduce quality?
No. Pages are copied into the new document exactly as they are: text stays selectable and images keep their original resolution. Merging is a structural operation, not a re-encode, which is why the result is normally about the same size as the inputs added together.
02In what order are the files combined?
Files are merged in the same order you select or drop them.
03Is there a limit on how many files I can merge?
No fixed limit. The merge runs on your own hardware, so the practical ceiling is your device memory rather than a quota we set. Very large batches of scanned documents are the only case where you may need to work in two passes.
04Are my PDF files uploaded to merge them?
No, and this changed: merging used to run on our server and now runs entirely in your browser tab. Nothing is transmitted, nothing is stored, and there is no copy of your documents anywhere. It also means the old 25 MB per-file ceiling is gone, since it existed to protect the server rather than because the format needed it.