PDF Room · Bench
Merge PDF
Combine multiple PDFs into one
Drop PDFs here or click to choose
Processed entirely in your browser — never uploaded
About this bench
About Merge PDF
Combine several PDF files into one document, in the order you choose. Everything happens in your browser, so even sensitive PDFs never leave your device.
Input
Select the PDF files requested by this bench and review their order or options before processing.
Result
A new PDF or browser preview generated locally and offered for download when processing succeeds.
Limits
Large, damaged, password-protected, scanned or unusually structured PDFs may exceed browser memory or require specialist software.
How to use Merge PDF
- 01Add the PDF files you want to merge.
- 02Drag them into the order you want.
- 03Click merge to combine them.
- 04Download the merged PDF.
Frequently asked questions
Are my PDFs uploaded to merge them?
No — your file is processed entirely in your browser and is never uploaded to a server, so even sensitive files stay private.
Is there a file size or count limit?
Yes. For reliable browser processing, each PDF is limited to 50 MB and 300 pages, and the bench also enforces selection and session memory budgets. The limit message shown when you add files gives the exact allowance for your device.