Merge PDF files online
Combine several PDFs into one document.
How it works
- 1
Drop two or more PDF files.
- 2
Drag them into the order you want.
- 3
Click Merge and download your document.
Combine multiple PDF files into a single document in seconds. Reorder files with drag and drop, preview every file, and download one clean PDF. Everything happens in your browser, so your documents stay private.
Merging PDFs is the quickest way to turn scattered scans, invoices, contracts or chapters into one file that is easy to email, print or archive. Because pages are copied rather than re-rendered, bookmarks-free documents keep their exact fonts, images and sharpness. Use the arrows or drag the thumbnails to fix the order before you merge.
What people use it for
- Combine scanned pages, receipts and invoices into one file for expense reports.
- Assemble a job or visa application from separate documents.
- Join chapters, lecture notes or contract exhibits into a single PDF.
Tips for best results
- Put files in the right order before merging; thumbnails make it easy to check.
- Merge first, then compress, so the final file is as small as possible.
- Unlock password-protected files first, because they cannot be merged directly.
Your files never leave your device
Unlike most online PDF tools, Intelli File does not upload your documents to a server. Everything runs in your browser using your own device, so contracts, IDs and financial records stay private. Only a small usage counter is sent so we can apply daily limits.
Read how we handle privacyWhat to do next
After this, you may want to Organize PDF, Compress PDF, or Add page numbers.
Frequently asked questions
How many PDFs can I merge?+
As many as your device's memory allows. Most people merge dozens of files without any trouble.
Is the original quality kept?+
Yes. Pages are copied as they are without recompressing, so text stays sharp and searchable.
Are my files uploaded?+
No. Merging happens locally in your browser.
Is there a limit on file size?+
Free accounts can merge files up to 25 MB each (50 MB signed in); Pro raises this to 500 MB per file.
Can I merge password-protected PDFs?+
Unlock them first with the Unlock PDF tool, then merge.