Free online tool
Merge PDF Online
Combine multiple PDF files into one PDF document online for free.
Combine multiple PDF files into one PDF document online for free. Choose your file, review the selected list, then start the tool. The browser sends the file to the processing API and returns a downloadable result.
Merge PDF Online
How it works
Choose your file, review the selected list, then start the tool. The browser sends the file to the processing API and returns a downloadable result.
For the best result, place files in the exact order you want before starting. The merged PDF keeps each source file as a complete section, so page-level rearranging should be handled before upload.
The result uses the shown output filename as a fallback when the server does not provide a specific download name. merged.pdf
File limits
PDF files only. Up to 10 files, 50 MB total.
The upload area checks file type, file count, and total size before processing so unsupported files can be corrected early.
Large scanned PDFs can make the merged document heavy. If the combined file is too large for email or a portal, compress the final PDF after checking that every page is present.
Privacy and file handling
Files are used only for the requested PDF task and are removed from temporary storage after processing.
If the set includes contracts, IDs, or financial records, confirm that you are allowed to process them online before upload and keep a local copy of the original files.
Output quality
The tool is tuned for practical everyday documents. Very complex layouts, image-heavy PDFs, or scanned pages can affect the final result.
Merging does not intentionally lower image quality. Differences in page size, rotation, or scan quality come from the source PDFs and will still be visible in the final document.
Combine two or more PDFs into one clean document.
Common uses
- Preparing files for email, upload portals, or shared folders.
- Organizing document pages before sending them to clients, schools, or internal teams.
- Finishing small document changes on a phone, tablet, or desktop browser.
- Combining a cover letter, forms, receipts, and signed pages into one upload-ready document.
- Creating a single archive file from several monthly statements or project documents.
Troubleshooting
- If processing fails, check that the file is not password-protected or corrupted.
- If the upload is rejected, reduce the file size or split the job into smaller batches.
- If the output is not what you expected, try a cleaner source file with standard page sizes.
- If page order is wrong, rename and reselect the files in the intended order before running the merge again.
- If one PDF blocks the merge, open it locally and check for password protection, corruption, or unsupported permissions.
Related tools
Guides
How to merge PDF files in the right order
Plan a clean PDF merge by naming files clearly, arranging pages before processing, and checking the final document before sharing it.
GuidesFrequently asked questions
How do I merge PDF files online?
Upload your PDF files, arrange them in the order you want, then select Merge PDF to download one combined file.
Can I change the order before merging?
Yes. Use the move up and move down controls in the upload list before processing.
Are my uploaded PDFs stored permanently?
Files are processed only for your conversion request and are deleted from temporary storage after processing.
Do I need to create an account?
No. The tool can be used without signup or login.
What happens to uploaded files?
Uploaded files are processed for your request and removed from temporary storage after processing.