What is Merge PDF?
Merge PDF combines two or more PDF files into a single document, keeping every page's content, size and orientation.
How to use Merge PDF
- 1
Add two or more PDF files, or drop them onto the page.
- 2
Drag files, use the arrow buttons or sort A–Z to set the order.
- 3
Click Merge and download the combined PDF.
Features
- Unlimited number of files, limited only by your device's memory
- Reorder with drag and drop or keyboard buttons
- Keeps original page sizes, orientation and vector content
- Page-count preview for every file
Supported formats
Maximum file size: 200 MB per file.
Practical uses
- Combine invoices or receipts into one file for accounting.
- Join a cover letter, CV and certificates into a single application PDF.
- Assemble chapters or scanned pages into one document.
Limitations
- Bookmarks (outlines) and form fields from the source files are not carried over.
- Password-protected PDFs must be unlocked first.
Frequently asked questions
How many PDFs can I merge at once?
There is no fixed limit. Each file can be up to 200 MB; very large totals depend on your device's memory.
Will the quality change?
No. Pages are copied as they are, so text stays selectable and images are not recompressed.
Can I merge PDFs on my phone?
Yes. The tool works in modern mobile browsers; use the arrow buttons to reorder files.