What is a PDF Merger?
A PDF merger combines two or more separate PDF files into a single document, keeping every page's original content, formatting, and quality intact. It's the tool you reach for when you need to merge PDF files online — combining scanned pages, chapters, invoices, or reports into one file that's easier to send, print, or archive. Our merger lets you control the exact order the files are combined in, and runs entirely on our own servers rather than a third-party API.
How to Merge PDF Files Online — Step by Step
- Upload your PDFs. Drag and drop two or more PDF files into the box above, or click to browse and select them.
- Arrange the order. Use the up/down arrows next to each file to put them in the order you want them to appear in the merged document.
- Merge and download. Click "Merge PDFs." Your combined file is ready in seconds — download it with one click.
Why Use Our PDF Merger?
- Combine any number of PDFs — no limit on how many files you can merge at once.
- Full control over page order, with a simple reorder interface before you merge.
- Original quality preserved — pages are copied directly, not re-rendered or recompressed.
- Private by design — every uploaded file is automatically deleted within 2 hours.
- No signup required — merge PDFs as a guest, completely free.
Frequently Asked Questions
Is there a limit to how many PDFs I can merge?▾
No fixed limit on the number of files — the practical limit is the total combined upload size (each file up to 200 MB).
Will merging affect the quality of my PDFs?▾
No. Pages are copied directly from each source file into the new document without being re-rendered, so text, images, and formatting stay exactly as they were.
Can I change the order of the pages after merging?▾
The merge order follows the file order you set before merging. To rearrange pages within the merged result, use our Organize PDF tool afterward.
Do you keep a copy of my merged PDF?▾
No — both the uploaded files and the merged result are automatically deleted within 2 hours.
Can I merge password-protected PDFs?▾
Remove the password first with our Unlock PDF tool, then merge the unlocked files.
Related Tools
- Compress PDF — Reduce PDF file size without losing quality.
- Merge PDF and Image — Combine PDFs and images into a single PDF.
- Split PDF — Split a PDF into separate files by page range.
- Crop PDF Page — Crop margins or content area from PDF pages.
- Organize PDF — Reorder, delete or duplicate PDF pages.
- Rotate PDF — Rotate one or all pages in a PDF.