Tools / Merge PDF
Merge PDF
Join several PDFs into one, in the order you choose.
- This tool has no upload step
- This browser-only engine does not send your file
- Every tool driven in a browser each release
Choose two or more PDFs
or drop them here
How it works
- Add two or more PDFs.
- Drag them into the order you want them joined.
- Merge, then download the single file.
Getting the order right before you merge
Merging is the easy part. Almost every complaint about a merged file is about the order or the orientation of what went in.
Put them in order before you press merge
The list is the order of the finished file. Dragging afterwards means merging again, and a second pass through the tool is a second chance to get it wrong.
Check every file opens first
A PDF that is damaged will either fail the merge or contribute a blank page. Open each one and scroll it before you add it.
Watch for mixed page sizes
A4 and Letter joined together produce a file that prints with a margin shift halfway through. Nothing here changes the page size, so decide whether that matters before you send it.
Name it something the recipient can file
An office that asked for one attachment is going to save it. merged.pdf tells them nothing a month later.
Where this is the wrong tool. Merging keeps each page exactly as it was, which means it also keeps whatever was wrong with it. If a source file was a sideways scan, the merged file has a sideways page. Rotate or organise it first.
When the browser is not enough
Scanly for Android
Take document-scanning workflows to your Android phone with Scanly. See the Google Play listing for current features, requirements and data-processing information.
Questions
Do my files get uploaded?
No. The files are joined in this page, in your browser. There is no upload step, and there is no server here that could receive one. Open your browser's network tab and merge something if you want to check.
Does merging make the text stop being selectable?
No. The pages are copied across as they are, so text stays text, links keep working and nothing is re-compressed. That is the difference between merging and printing everything into a new PDF, and it is why this is safe to do to a contract.
Is there a file size limit?
None is imposed. Every file is held in memory while it is joined, and so is the result, so the practical ceiling is what your device can hold at once. A handful of ordinary documents is nothing; fifty large scans will make a tab struggle.
Can I merge a password-protected PDF?
Not directly, and it is refused rather than worked around. Writing its pages into a new file would quietly strip the protection somebody chose to put on it. Open it with its password, save an unprotected copy, then merge that.
What about bookmarks and form fields?
Neither survives, and that is worth knowing before you rely on it. Bookmarks and the document outline belong to a document rather than to its pages, so copying pages leaves them behind. Form fields stop being fillable, though anything already filled in stays visible as page content.
Can I put the files in a different order?
Yes. Drag them into any order before you merge, and drop any you change your mind about.
Does it work without a connection?
Opening the page needs one, and so does the first merge, because that is when this site hands over the PDF writer. The joining itself uses no network, and your files are never sent anywhere either way.