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Merge PDF
Combine separate PDFs into a single file. Reorder files before processing and include only the page ranges you choose.
- 1Upload
- 2Settings
- 3Process
- 4Download
Supported file types: .pdf. You can upload up to 2 files, and each file must be no larger than 25 MB.
Supported file types: .pdf. You can upload up to 2 files, and each file must be no larger than 25 MB.
How to Merge PDF Files
Upload two or more files, and drag the file items to change the display order of the merged files.
Check page orientation before merging. If some source PDFs are landscape and others portrait, the merged file will keep each page's original orientation rather than standardizing it.
Remove unwanted pages first. If a source file has pages you don't want in the final document, use [Split PDF](/split-pdf) or a page-delete tool to trim it down before merging.
Double-check file order.Since the merged output follows the order you set, it's best to preview the thumbnail arrangement again before processing.
Frequently Asked Questions
How many PDFs can I merge at once?
You can merge multiple PDF files in a single operation and arrange them in any order you choose. The number of files and the size of each file depend on your subscription plan.
Will merging affect the quality of my PDFs?
No. Merging only combines pages into one file - it doesn't re-compress or alter the content, so text, images, and formatting remain exactly as they were in each source file.
Can I reorder pages after merging, or only before?
Page order is set before processing, based on how you arrange the file thumbnails. If you need to reorder pages after merging, you can re-upload the merged file and use [Split PDF](/split-pdf) to extract and rearrange sections, then merge again.
Can I merge PDFs with different page sizes or orientations?
Yes. Pages keep their original size and orientation after merging - the tool doesn't force every page into a uniform layout.
Can I merge password-protected PDFs?
You'll need to unlock or remove the password from any protected file before merging, since the tool needs to read the page content directly.
Can I split a merged PDF back into separate files later?
Yes. Use [Split PDF](/split-pdf) any time to divide a merged document back into individual files or extract specific pages.