How it works
Merge PDFs in 3 easy steps
1
Upload your PDFs
Select or drop multiple PDF files. You can add up to 20 PDFs at once.
2
Arrange order
Your files appear in the list. Remove any you don't need before merging.
3
Download merged PDF
Click Merge and your combined PDF downloads instantly.
Merge limits & tips
PDF merge — what you need to know
Use this table to plan your merge before uploading.
| Scenario | Files | Approx. Total Size | Result |
|---|---|---|---|
| Email-friendly report | 2 – 5 PDFs | Under 5 MB | Perfect |
| Presentation + appendix | 5 – 10 PDFs | 5 – 15 MB | Works great |
| Contract bundle | 10 – 20 PDFs | 15 – 25 MB | Use compression after |
| Large document archive | 20+ PDFs | 25+ MB | Split into batches |
Merged file size calculator
TOTAL FILES
3
MERGED SIZE
6.0 MB
RECOMMENDATION
Good to go
Common merge scenarios
📊 Reports with appendices
Merge your main report with supporting data, charts and references into one clean PDF to send to clients.📁 Document bundles
Combine invoices, receipts and contracts into one file for accounting or legal submissions.📚 Book chapters
Merge separately written chapters into a single manuscript. Preserves all formatting from each file.🖨️ Print-ready files
Combine cover page, content and back matter into one PDF ready to send to a print shop.FAQ
Frequently asked questions
How many PDFs can I merge at once?
You can merge up to 20 PDF files in a single operation. Each file can be up to 25 MB in size.
Will the quality be affected?
No. We simply combine the PDF pages without re-encoding or compressing them. Quality is identical to the original files.
Is it free to merge PDFs?
Yes, completely free. No account, no watermarks, no limits on how many times you use it.
Are my files secure?
Yes. All files are transferred securely over HTTPS and deleted from our servers within 1 hour.
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