Merge PDFs online
Combine up to 20 PDF files into one. Free, no sign-up, no watermark.
How to merge PDFs in 3 steps
1
Select the files
Drag the PDFs here or click to choose. Up to 20 files at a time. Each can be up to 25 MB.
2
Order as you like
The list order defines the page order in the final PDF. Drag to reorder or remove files.
3
Merge and download
Click "Merge PDFs". Within a few seconds the combined file appears for download. Done.
Frequently asked questions
How do I order the PDFs?
After selecting the files, they appear in a list. You can drag each item up or down to reorder. The list order is exactly the page order in the final PDF.
Is there a limit on how many PDFs I can merge?
Yes: up to 20 files per operation, with a maximum of 25 MB each and 50 MB total. If you need to merge more, do it in batches (merge 20, then merge the result with the next batch).
Do the PDFs go to a server?
Yes, to secure servers on our infrastructure, and they come back to you within seconds. We DO NOT store the files — they are processed in RAM and discarded immediately after you download the result.
Does it work with password-protected PDFs?
No. PDFs with an open password ("user password") must be unlocked first. PDFs with an edit/copy password ("owner password") work normally — merging does not modify the content.
Will there be a watermark or ads in the final PDF?
No. No watermark, no CTA, no ads. The final PDF is clean — exactly the pages of your original files in the order you defined.
Are bookmarks, forms, internal links preserved?
Yes. Merging preserves: text, fonts, images, annotations, forms (form fields), external hyperlinks. Bookmarks are merged (each PDF keeps its own). Digital signatures are invalidated (a technical limitation of merging).
