Merge PDF
Combine several PDFs into one, in any order
Drop files here
or — you can also paste with ⌘V
PDF files · up to 300 MB each
This tool runs entirely inside your browser. Your files are never uploaded, never stored, and never seen by anyone but you.
How to merge PDF files
- Drop your PDFs onto the page, or click to browse for them.
- Drag the rows into the order you want them combined.
- Optionally open Choose specific pages to take only part of a file.
- Click Merge, then download the result.
Does anything get uploaded?
No. The merge runs inside your own browser using WebAssembly, so the documents never travel over the network. You can disconnect from the internet after the page loads and the tool still works.
What about password-protected files?
A PDF with an open password cannot be read without that password, so it is flagged in red rather than silently skipped. Remove the password in your usual PDF reader, then add the file again.
Limits
Up to 50 files at a time, each up to 300 MB, and 500 MB across the whole selection — merging holds every file in memory at once, so the combined size is the limit that actually matters. Bookmarks and form fields from the source documents are not carried into the merged file — the pages themselves, including text, images, links and annotations, are copied exactly.