Merge PDF
Merge PDF Files Into a Single PDF Online
Private and Secure PDF Merging
Your files travel over an encrypted connection and are permanently deleted from our servers within a few hours.
Combine Multiple PDFs Into One
Join two or more PDF documents into a single file in seconds, right in your browser — nothing to download or install.
Reorder Files Before You Merge
Drag and drop to set the exact file order, then merge everything into one PDF document that's ready to share.
The Simple Way to Combine PDF Files
Upload your documents, put them in order, and download one merged PDF — online, in seconds.
How to Merge PDF Files Online
- Add your PDF files — drop them into the box above or pick them from your device.
- Drag the files into the order you want them to appear.
- Click Merge and download your combined PDF.
A Secure Online PDF Merger
Combine PDF files right in your browser — nothing to install. Your documents travel over an encrypted connection and are permanently deleted from our servers within a few hours. Start right away and upgrade when you need higher limits.
Keep Working with Your Merged PDF
Need to go further? Compress the merged PDF so it's easy to email, split it back into separate documents, or convert it to Word for editing.
See all PDF toolsMerge PDF — Frequently Asked Questions
How do I merge PDF files online?
Add your PDF files to the box above, drag them into the order you want, and click Merge. Your combined PDF is ready to download in seconds.
Is it safe to merge PDF files with Zonepdf?
Yes. Files travel over an encrypted connection, are processed automatically, and are permanently deleted from our servers within a few hours.
Can I change the file order before merging?
Yes — drag and drop the uploaded files into any order. The merged PDF follows exactly the order you set.
How many PDF files can I combine at once?
You can add up to 50 PDF files in a single merge without an account. Sign in to combine even more in one go.