How to merge PDF files
- Drop in the PDFs you want to combine. Add them all at once or a few at a time.
- Drag the files into the order you want them to appear in the finished document.
- Press Merge, and the combined PDF downloads immediately.
Questions people ask
How many PDFs can I merge at once?
As many as you like. There is no file-count limit and no total size limit, because nothing is being uploaded — the only constraint is your device’s memory.
Will the merged file have a watermark?
No. The output is your documents, joined, and nothing else. No logo, no footer, no trial stamp.
Are bookmarks, links and form fields preserved?
Page content, embedded fonts, images and internal links are carried across faithfully. Document-level features such as bookmark trees and form fields belong to the original file as a whole and may not survive being merged with other documents — this is a limitation of how PDFs are structured, not of this tool.
Can I merge a password-protected PDF?
If the PDF only restricts editing or printing, it will merge normally. If it requires a password just to open, remove the password first using the Unlock PDF tool.