Does the merged PDF keep the original formatting?

Yes. Merging only concatenates pages in order; fonts, images and layout stay intact — nothing is re-flowed or compressed.

Yes. The whole process runs locally in your browser and files are never uploaded to our servers.

Are there file limits?

Up to 20 files per run, 30 MB each, 120 pages total. Larger jobs can be split across runs.

Merge PDFs

Add at least two PDFs and arrange their order before merging.

+Choose files or drop them herePDF files, up to 30 MB each

Files are processed in this browser only. Large files may take a moment.

Need to join several PDFs into a single file? aipdf's merge tool works entirely in your browser, so your files never leave your device — private by design. Add at least two PDFs, drag to reorder, and download the combined file in one click. Great for contracts, reports and scans, with no software to install and no login required.

How to use

Click to choose or drop in at least two PDF files
Use move up / down to set the order
Click Process and download to get the merged PDF

FAQ

Does the merged PDF keep the original formatting?: Yes. Merging only concatenates pages in order; fonts, images and layout stay intact — nothing is re-flowed or compressed.
Are my files safe?: Yes. The whole process runs locally in your browser and files are never uploaded to our servers.
Are there file limits?: Up to 20 files per run, 30 MB each, 120 pages total. Larger jobs can be split across runs.