How to merge pdf online
- 1
Add two or more PDF files using the drop zone or file browser.
- 2
Drag the files into the order you want them combined.
- 3
Click Merge, then download your single combined PDF.
Why use PDFLark's Merge PDF?
- Combine contracts, reports, or scans into one tidy document.
- Reorder files before merging so pages land in the right sequence.
- No upload means even sensitive documents stay private on your device.
Frequently asked questions
How many PDFs can I merge at once?
There is no fixed limit. You can combine as many PDF files as your device's memory allows — typically dozens of files in a single merge.
Will merging reduce the quality of my PDFs?
No. Pages are copied exactly as they are, so text stays sharp and images keep their original resolution.
Is it really free?
Yes. Every PDFLark tool is completely free with no daily limits, no file-count caps, and no watermarks added to your documents.
Are my files uploaded to a server?
No. All processing happens locally in your browser using JavaScript. Your files never leave your device, which is why PDFLark works even on private or confidential documents.
Do I need to create an account?
No account, no email, and no sign-up. Open the tool, add your file, and download the result.
Which browsers and devices are supported?
PDFLark works in any modern browser — Chrome, Firefox, Safari, and Edge — on Windows, macOS, Linux, iPhone, and Android.