Organize PDF
Merge PDF files
Combine PDFs in the order you want. Drop your files, arrange them, and download one polished document.
User guide
How to use Merge PDF
Combine several PDF documents in a chosen order without sending them to a server.
- 1
Select two or more PDF files.
- 2
Drag the file cards into the required order or use the touch-friendly up and down controls.
- 3
Choose Start merging and wait for the local page copy to finish.
- 4
Download the combined PDF, reopen it, and confirm the page count and order.
Best for
- Combining a contract with signed appendices
- Preparing one visa or reimbursement submission from several files
- Joining scanned invoices into one accounting packet
Important limitation
Password-protected, damaged, or unusually complex PDFs may need to be unlocked or repaired first. Keep the original files until the merged output has been checked.
Frequently asked questions
Are my PDFs uploaded?
No. The merge operation runs in browser memory and sends no PDF bytes to PDFPerch.
Can I change the order?
Yes. Reorder the file cards before starting the merge; mobile users can use the up and down buttons.
What happens if one PDF is encrypted?
Processing stops with an error instead of silently omitting the file. Unlock the PDF with its valid password, then try again.
How should I verify an important result?
Reopen the download in an independent PDF viewer and compare the page count and order with the source files.
Popular related tasks
Open a focused page when you have a specific upload, printing, signing or conversion goal.
PDFPerch processes files locally unless this guide explicitly identifies a cloud-dependent feature. Always keep an original copy and verify critical output before submission, printing, signing, or accounting use.