What is the PDF Merge Tool?
Combining a cover letter, resume and certificates into one PDF — or stitching several scanned pages into a single document — usually means installing separate software. This tool merges up to 20 PDFs into one file, letting you reorder them before combining, entirely in your browser.
How to Use This Tool
- Upload two or more PDFs (up to 20).
- Use the ↑/↓ arrows to put them in the order you want.
- Click Merge and download the combined PDF.
Frequently Asked Questions
How many PDFs can I merge at once?
Up to 20 PDF files per merge, combined in the order you add them — drag to reorder before merging.
Are my PDFs uploaded to a server?
No. Merging happens entirely in your browser using a JavaScript PDF library — nothing is uploaded.
Does merging affect PDF quality?
No. Pages are copied as-is into the combined file — no re-rendering or compression happens.
Last updated: August 2026