How to merge PDFs
Combine multiple PDFs into one file in the order you choose.
1. Choose PDFs
On this device · no upload
Choose the PDFs to combine.
INSPIRED TOOLS / PDF
Merge PDFs
Combine multiple PDFs into one file in the order you choose.
Switching tools requires selecting your files again. Save any results you need first.
Prepare your files
On-device processingSelected files stay on your device. Up to 50MiB total, 100 files and 200 pages.
How to check your result
Files are combined in list order. Pages inside each file keep their order and sizes; they are not all resized to A4.
What to check
- Check the total page count, cover and attachment order. Inspect the download for missing or duplicate pages.
- Preservation of signatures, bookmarks, form fields and accessibility tags is not guaranteed. Keep important originals.
Visual page order and logical PDF reading order can differ. After merging, test reading and form behavior when those features matter. [1]
Continue with a task
Download the result first, then open it in the next tool. Files are not transferred automatically.
Sources and further reading
Keep this tab open while processing. Changing files or settings releases the previous result link.
Frequently asked questions
Can I merge PDFs with different page sizes?
Yes. The result preserves each page's original size and orientation. Files are merged in the list order, while the pages inside each file keep their original order. Pages are not automatically resized to A4.
How do I remove duplicate pages after merging?
Save the merged PDF, then open it in Organize PDF to remove or reorder pages using previews. Keep your originals: preserving digital signatures, bookmarks and form fields is not guaranteed.
Are my files uploaded?
On-device mode is the default and processes files in your browser without uploading them. Server mode uploads files only after you read the notice and press the server action button. Check the tool for the limits and retention period before choosing that mode.