Merge PDF files online into one organized document
Assemble reports, scanned documents or design proofs in the order you need. Add multiple PDFs and move each file up or down. Pages are copied into the output document rather than rasterized, preserving ordinary page text and graphics. Document-level bookmarks, attachments, interactive forms and digital signatures are not guaranteed to survive merging.
How to use the merge pdf
Open your file
Add two or more PDF documents.
Choose your settings
Arrange the files in the order their pages should appear.
Save your result
Convert and download the merged PDF.
- Multiple PDF input
- File reordering
- Page content preservation
- File and page previews
- Up to 500 combined pages
When this tool is useful
Assemble a report and its appendices
Add each PDF and move the main report ahead of supporting material. Select a file in the Files tab to inspect its pages before exporting the combined document.
Combine invitation or design proofs
Collect related PDFs in a single file so reviewers can read them in sequence. Different page sizes can remain in the merged output; merging does not make all pages the same dimensions.
Organize a group of scanned PDFs
Place the files in the order their pages should appear. If a source contains unwanted pages, extract the useful pages with Split PDF before merging.
Choose the right settings for your file
| Option | Use it for | What to know |
|---|---|---|
| Move up / Move down | Controlling document order | All pages of each file are added before pages from the next file. |
| File selection | Previewing a source document | Changing the preview does not change the merge order. |
| Remove | Leaving a file out of the result | Removes it from this workspace, not from your device. |
Frequently asked questions
Practical answers about files, output and what this tool can do.
Can I merge password-protected PDFs?
No. Unlock the documents in a trusted PDF application first, then add the unlocked copies.
Does merging preserve digital signatures?
Rebuilding a document does not preserve its original digital-signature validity. Retain the signed originals and review forms and bookmarks in the merged copy.
Can I merge PDFs with different page sizes?
Yes. Pages are copied at their original sizes, so a combined PDF can contain both portrait and landscape pages of different dimensions.
Does merging reduce PDF image quality?
The merger copies ordinary page text and graphics without rendering each page as a JPEG. Document-level features such as forms, bookmarks and signatures still need review.
Your files stay on your device
These tools process your files in your browser without uploading them to a file-processing server. You do not need an account or an OpenAI service. Keep your original file and review the download before sharing it. Read our privacy policy for information about the website's standard analytics.