Free PDF tool
Merge PDF
Combine several PDFs into one, without uploading any of them.
Merging is the most common thing anyone needs to do to a PDF: stitching a signed page back onto a contract, combining scanned receipts into one expense claim, or joining chapters into a single document before sending it on.
This tool reads each file in your browser, copies every page across in the order you set, and gives you one document back. Page content, fonts and embedded images are carried over untouched — nothing is re-encoded, so quality is identical to the originals.
How to use it
- 01Drop in two or more PDFs, or click to browse for them.
- 02Use the arrows to put the files in the order you want them combined.
- 03Click Process PDF and download the merged document.
Frequently asked questions
Is there a limit on how many PDFs I can merge?
No fixed limit. The practical ceiling is your device's memory, since every document is held in RAM while merging — dozens of ordinary files are fine.
Does merging reduce quality?
No. Pages are copied across as-is, with no re-compression of text or images. The merged file is a faithful concatenation of the originals.
What happens to bookmarks and form fields?
Page content, images and annotations are preserved. Document-level structures such as bookmarks, and interactive form fields with the same name across files, may not survive the merge — check the result if your document relies on them.
Can I merge a password-protected PDF?
Yes, if you know the password. Unlock it first with the Unlock PDF tool, then merge the unlocked copy.
Related tools
- Split PDFBreak one PDF into several — by page ranges, fixed chunks, or one file per page.
- Organize PDF PagesReorder, duplicate, rotate and delete pages in one visual editor.
- Compress PDFShrink a PDF to fit an upload limit, with the quality trade-off made explicit.
- JPG to PDFTurn photos or scans into a single PDF, one image per page.
This is what Purgify automates.
Connect your cloud accounts and Purgify finds duplicates and reclaimable space like this — across all of them, on a schedule.
Want early access? Write to us at [email protected]