Merge PDF
Combine PDF files into one, in the order you choose. Free, with no signup, and your files never leave this device.
or
PDF files only. Add as many as you need.
Processed on this device. Nothing is uploaded. How it works
Very large files depend on your device's memory.
Files
More options
Merging
0%
Starting
Working on this device. Keep this tab open.
How to merge PDF files
- 1
Choose your PDF files
Tap Choose PDF files, or drop them onto the box.
- 2
Put them in order
Use the up and down arrows, or drag files on a computer.
- 3
Merge and download
Tap Merge, then Download PDF.
Limits and supported files
| Accepted files | PDF (.pdf). Files that need a password to open must have it removed first. |
|---|---|
| Number of files | No limit set by PageYak. |
| File size | Depends on your device's memory. Phones handle smaller totals than computers. |
| What is kept | Every page with its text, images and rotation, in the order you choose. |
| What may not carry over | Bookmarks and fillable form fields. |
| Where your files go | Nowhere. They are read and merged in this browser tab. |
Privacy: how this tool handles your files
When you use Merge PDF, your browser reads your files on your device and the tool's code does the work in this tab. PageYak's server only sends the page and its code. It never receives your files, so there is nothing to delete afterwards.
How PageYak works explains this in more detail.
Why is my merged file about as big as all the originals?
Each PDF carries its own fonts and images. Merging keeps them all, so the new file is roughly the size of the originals added together.
When to merge PDF files
Merging keeps every page exactly as it was: text stays selectable, links keep working and nothing is converted to pictures.
- Job and university applications that ask for one file: CV, certificates, transcripts and ID in a single PDF.
- Visa, bank and loan paperwork, where every page must reach the office in one upload.
- Invoices, receipts and statements for one month or one client, kept together for your accountant.
- Scanned pages from a phone app that saved each page as its own PDF.
Questions
Is it safe to merge private documents here?
Yes. Your browser reads and merges the files on your device. PageYak's server never receives them, so there is nothing to delete afterwards.
Can I merge PDFs on my phone?
Yes. Tap Choose PDF files, pick the files, then tap Merge. It works in Chrome on Android and Safari on iPhone.
Will merging lower the quality?
No. Pages are copied as they are, so text and images keep their quality.
How do I change the order?
Use the up and down arrows next to each file, or drag files on a computer. Files merge from top to bottom.
Can I merge password-protected PDFs?
If the file opens without a password, yes, even when it has editing or printing restrictions. If it needs a password to open, remove it first with Unlock PDF, then merge.
How many PDFs can I combine at once?
As many as your device can hold in memory. Dozens of normal documents are fine on a phone; very large scans work best on a computer.
Can I combine PDF and JPG files?
Turn the photos into a PDF first with JPG to PDF, then merge that PDF with your other files.
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Last updated 12 November 2026.