🔗 Merge PDF Files
Combine multiple PDFs into a single document. Add your files, drag to set the order you want them combined in, then merge — everything happens locally in your browser, nothing is uploaded.
How it works
The tool reads each PDF you add directly in memory and copies every page, in order, into a new combined document — the same operation desktop PDF software performs, just running inside the browser tab instead of an installed app. Because nothing leaves your device, there's no file-size cap imposed by an upload limit and no wait for a server round-trip.
When merging PDFs actually matters
Combining scanned signature pages with a contract, assembling a multi-chapter report from separate exports, or putting together a single PDF of supporting documents for a loan or visa application are the most common reasons people need this — anywhere a recipient expects one file, not five attachments.
Frequently Asked Questions
Is there a limit to how many PDFs I can merge?
No hard limit is enforced by the tool itself — the practical ceiling is your device's available memory, since everything is held in the browser tab while processing. Merging a handful of typical documents works without any issue on virtually any device.
Does merging preserve the original formatting and quality?
Yes — pages are copied as-is from the source PDFs, so text, images, and formatting remain exactly as they were in the original files. Nothing is re-rendered or compressed during a merge.
Can I change the order after adding files?
Yes — drag any file in the list to reorder it before merging. The final document follows whatever order the list shows top to bottom.
Will this work with password-protected PDFs?
No — an encrypted PDF needs to be unlocked with its password in a PDF editor first. This tool works with standard, unprotected PDF files.
Is my file uploaded to a server?
No. The entire merge happens using JavaScript running in your browser tab. Nothing is sent anywhere — closing the tab clears everything.
Related Tools