Form fields survive
AcroForm fields, appearances and radio options are rebuilt in the merged file, and duplicate field names are made unique so both copies keep working.
Merge PDF · Free · No upload
Merge PDFs into one document, privately.
Add your PDFs, arrange them with the arrows and download a single file. YaPDF copies every page, keeps interactive form fields working and never sends a byte to a server.
- Local processing
- No watermarks
- No signup
- No trackers
01 · THE TOOL
Several files in. One PDF out.
Pages follow the order shown in the list. Reorder with the arrows before merging.
Runs on this device
SELECTED TOOL
Merge PDFs
Drop two or more PDFs here
or click to choose from your device
Multiple PDFs · Processed locally
Pages follow the order shown above. Use the arrows to reorder files before merging.
Working on it…0%
Reading your file locally.
Your file is ready
Download
02 · STEP BY STEP
How to merge PDF files
Select files together or one at a time; the order is yours to set.
- 1+
Add two or more PDFs
Select them together or add them one by one. Files with the same name are kept apart.
- 2
Set the order
Use the up and down arrows on each file. The position number shows where its pages will land.
- 3✓
Download the merged PDF
Every page is copied in sequence into a new document named merged-yapdf.pdf.
03 · WHAT YOU GET
Merging that keeps documents intact.
Every feature below runs on your device. See how the engines work.
Order you control
Reorder files before merging; the list shows exactly what comes first.
Original pages, not re-rendered
Pages are copied as PDF objects with pdf-lib, so text stays selectable and vector graphics stay sharp.
No size ceiling from us
Merge dozens of files or long reports; the only limit is your device memory.
Can I merge protected PDFs?
Unlock them first. A protected file stops the merge with a message naming the file, so you know which one to unlock.
Are bookmarks and links kept?
Links and annotations inside pages are copied. Document-level bookmarks (outlines) from the source files are not carried over in this release.
What about XFA forms?
XFA forms are rejected rather than damaged. Export a standard PDF copy from your PDF viewer, then merge that.
Can I merge a PDF with images or Word files?
Use Combine to PDF, which accepts JPG, PNG, WebP, GIF, BMP, TXT, DOCX and PPTX alongside PDFs.
THE PDF DESK THAT RESPECTS YOUR DESK