PDF Tools
Merge PDF Files
Bring together multiple PDFs — reports, scanned pages, invoices — into one file, in the order you add them. No file size games, no watermarks, no uploads.
Click to choose PDF files or drag and drop here
Add two or more PDFs — they will be merged in the order you add them.
Your merged PDF is ready:
🔒 Processed entirely in your browser — your files are never uploaded anywhere.
How It Works
Using the open-source pdf-lib library, this tool creates a brand-new PDF document and copies every page from each file you add, in order, into it — preserving the original page content and formatting. The result is a single PDF containing every page from every input file, back to back.
Tips for Best Results
- Because pages are copied directly rather than flattened into images, merged PDFs stay fully searchable and text-selectable — a good option for combining reports, contracts, or scanned text documents you'll need to search later.
- Order matters: files are merged in the order you add them, so review the file list before clicking Merge rather than after.
- This tool combines whole files only. To pull together specific pages from different documents, use Split PDF or Remove PDF Pages first to isolate what you need, then merge the results.
Frequently Asked Questions
Does merging preserve the original quality?
Yes — pages are copied directly rather than re-rendered as images, so text stays sharp and selectable, and there's no quality loss from the merge itself.
Can I control the order of the merged pages?
The files are merged in the order you add them. If you need a different order, remove all files and re-add them in your preferred sequence, or merge in two smaller batches.