Merge multiple PDF files into one document
Combine PDF files in your chosen order into one continuous document, without rasterizing text or changing the original pages.
- 1 free task a day, no account needed
- No watermarks
- Encrypted in transit
- Deleted automatically
Merge PDF online, free
Combine several PDF documents into one file in your chosen order. This is useful for assembling applications, reports or scanned packets without turning their pages into images.
Good for: combine contract attachments, assemble a report and appendices, join scanned forms.
- One continuous file
- Preserve pages
- Control order
One continuous file
Send a single PDF instead of asking readers to open separate attachments.
Preserve pages
PDF pages are copied into the new document rather than rendered as screenshots.
Control order
Arrange source files before joining them to establish the final reading sequence.
Works on any device
Merge PDF runs in the browser on Windows, Mac, Linux, iOS and Android. Nothing to install.
How to merge multiple PDF files into one document
- 1
Upload the PDF files you want to combine.
- 2
Arrange the files in their intended order.
- 3
Merge and download the combined PDF.
Limits and formats
- Input
- Output
- Files per run
- Up to 3
- Max file size
- 25 MB for guests; free account 50 MB, Premium 500 MB
- Kept for
- 1 hour, then deleted
- Account
- Not required
Frequently asked questions
Does merging reduce PDF quality?
No rasterization is needed: existing pages are copied into the combined document. Some advanced interactive document features may not carry over unchanged.
Can I change the order of the documents?
Yes. Arrange the uploaded files before merging; pages follow that file order.
How large can each file be?
Guests can upload files up to 25 MB each. A free account raises the limit to 50 MB per file, and Premium allows 500 MB per file with larger batches.
Will I receive one PDF or a ZIP?
Merging produces one PDF containing the combined pages, not a ZIP of separate files.
Are uploaded contracts private?
Files are encrypted in transit and automatically deleted after a short time. Avoid sharing the downloaded PDF with unintended recipients.
Anything missing? Read how files are handled or write to support.
Related PDF tools
Tools people use before or after Merge PDF.
- Split PDFSeparate a PDF into smaller documents or individual page files.
- Organize PDFRearrange PDF pages visually and save them in the order you need.
- Extract PDF PagesSave selected PDF pages as a separate document for easy sharing.
- Delete PDF PagesRemove unwanted pages from a PDF while keeping the rest together.
- Reverse PDFNewReverse the order of every PDF page so the last page becomes the first.
- Rotate PDFFix sideways PDF pages and save the corrected orientation permanently.
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