Merge PDF
Combine PDF files into one, in the order you choose โ right in your browser.
About this PDF merger
Add your PDFs, drag their order into shape with the arrows, and merge โ one document out, pages in exactly the order you arranged. There's no cap on file count or page count beyond what your device's memory can hold, and no watermark on the result.
Like every tool here, the work happens in your browser: your files are never uploaded to a server, which is precisely what you want when the files are contracts, invoices or anything else you wouldn't forward to a stranger. Pages are combined without re-rendering, so each keeps its exact size, rotation and quality โ mixed page sizes are preserved as-is.
Ways people use it
- One attachment instead of five โ cover letter + CV + certificates into a single file that arrives in the right order.
- Reassemble after signing โ split out the signature page, sign it, merge it back in place.
- Combine scans โ a phone-scanned receipt pile becomes one document for the expense report, with JPG to PDF handling any photos first.
- Bind monthly statements โ twelve downloads into one yearly file before archiving.
Order, sizes and limits
The merge order is the list order โ use the arrows to rearrange before merging, and the numbering updates as you go. Documents with different page sizes merge fine; each page keeps its own dimensions, exactly as PDF is designed to allow. Very large merges are limited only by browser memory: hundreds of ordinary pages are no problem, though gigabyte scan archives may want doing in batches.
Frequently asked questions
Is this PDF merger free and private?
Yes โ free, no sign-up, no watermark, and the files are combined in your browser without ever being uploaded. Nothing about your documents leaves your device.
How do I change the order of the merged pages?
The output follows the list order. Use the up and down arrows on each file to rearrange before merging โ the numbers on the left show the final order.
Can I merge PDFs with different page sizes?
Yes. Each page keeps its own dimensions in the merged file โ an A4 report and a letter-size scan coexist exactly as they would in a printed binder.
Does merging reduce quality?
No โ pages are copied into the new file, not re-rendered or recompressed, so text sharpness and image quality are untouched.
How many PDFs can I merge at once?
There's no built-in limit; the practical ceiling is your device's memory. Hundreds of typical pages merge comfortably โ for enormous scan archives, merge in a few batches.