🔒 100% private — no uploads⚡ Instant merging🆓 Free, no sign-up
📎Drop PDF files here
Add two or more PDFs — click anywhere to browse
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↕ Drag rows to reorder — top to bottom sets page order
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What is merging PDFs?
Merging PDFs combines two or more separate PDF files into one single document, in whatever order you choose. It's a common task whenever you're assembling a packet from pieces created at different times — combining a cover letter with a resume, stitching together scanned pages, or compiling several reports into one file to send or archive.
This tool merges your files entirely inside your browser using pdf-lib, a JavaScript PDF library. Each page from every uploaded file is copied directly into a new combined PDF — not re-rendered as an image — which means fonts, images, and formatting stay exactly as sharp as they were in the originals. Nothing is ever uploaded to a server; the whole process happens on your device.
Because pages are copied directly rather than recreated, merging is fast even for large documents, and the resulting file is often barely larger than the sum of the originals — unlike some compression-based tools that re-render every page.
How to Merge PDF Files
01
Upload your PDFs
Click the drop zone or drag and drop multiple PDF files onto the page at once. Each file's page count appears automatically.
02
Set the order
Drag rows up and down using the handle to arrange your PDFs in the exact order you want them to appear in the final document.
03
Name your file
Give your merged PDF a descriptive name, or leave it as the default. The name appears in your downloads folder once the merge finishes.
04
Download
Hit Merge PDFs and your combined document downloads instantly. Everything happens in your browser — nothing is uploaded.
Tips & Best Practices
🔢 Check the order before merging
Drag files into their final order first — it's much faster than reordering pages inside a PDF editor after the fact.
📄 Check page counts
Each file shows its page count in the list. A quick glance can help you spot if a scan came out with the wrong number of pages before merging.
🔓 Unlock protected PDFs first
If a file is password-protected, remove the password using your PDF software before uploading it here, since encrypted files aren't reliably supported.
🏷️ Name your output clearly
Give the merged file a specific name — like "application-packet" instead of "merged" — so it's easy to find later.
Frequently Asked Questions
Yes — completely free with no sign-up, no watermarks, and no file size or page limits. The tool is supported by ads, not user fees.
Completely. All merging happens inside your browser using JavaScript. Your files are never uploaded to any server and never leave your device.
There is no set limit on the number of files. You can merge as many PDFs as you like. Performance depends on your device — very large collections of big files may take longer on older hardware.
Yes — pages are copied directly from the source PDFs without re-rendering, so formatting, images, fonts, and quality are all fully preserved in the merged output.
The tool will attempt to merge encrypted PDFs but may not be able to read all protected files. If a file fails to load, try removing the password protection first using a dedicated PDF unlock tool, then merge.
Yes. Use the drag handle next to each file to reorder them at any point before merging. The order shown in the list is exactly the order pages will appear in the final PDF.
Yes. Click the ✕ button next to any file in the list to remove it before merging. You can also add more files at any time using the "add more" button.
No. Unlike compression tools, merging copies each page directly from the source files without re-rendering them as images, so there's no quality loss at all — text stays sharp and selectable, and images keep their original resolution.
Yes. This tool works fully on mobile browsers such as Safari and Chrome. Tap the drop zone to select PDF files from your device and merge exactly as you would on desktop.