Is there a limit on how many files I can merge?

No fixed limit — it's constrained by your browser's memory, not a server quota.

Does merging change the quality of the pages?

No. Pages are copied as-is; nothing is re-rendered or recompressed during a merge.

Can I reorder individual pages, not just whole files?

Not yet — this tool reorders whole source files. To drop or reorder individual pages, split the file first, or merge and then use the split tool to trim the result.

No. 07

Merge PDF

Combine multiple PDFs into one file, in whatever order you set — processed locally, in your browser.

Drop PDFs to add them to the tray

Uploaded 0 bytes Loads a small PDF engine on first use, then works offline. (network monitor unsupported in this browser)

How your data is handled: everything above runs inside this browser tab; your file is never uploaded. Loads a small PDF engine on first use, then works offline.

Combining a few PDFs shouldn’t mean uploading contracts or statements to a stranger’s server just to reorder pages. This tool merges files locally with pdf-lib, so the documents never leave your device.

How to use it

Drop two or more PDFs onto the tray.
Drag a file card, or use its up/down buttons, to set the final order.
Remove any file you don't want to include.
Click Merge and download the combined PDF.

Tips & edge cases

Merging preserves each source PDF's own page sizes — mixing A4 and Letter pages in one merge is fine and won't be resized.
If a source PDF is password-protected, unlock it first; a locked file can't be read to merge.
Bookmarks and internal links from source files aren't currently carried over into the merged file's outline.

FAQ

Is there a limit on how many files I can merge?: No fixed limit — it's constrained by your browser's memory, not a server quota.
Does merging change the quality of the pages?: No. Pages are copied as-is; nothing is re-rendered or recompressed during a merge.
Can I reorder individual pages, not just whole files?: Not yet — this tool reorders whole source files. To drop or reorder individual pages, split the file first, or merge and then use the split tool to trim the result.