Merge PDF Files
Combine multiple PDF files into a single document. Drag and drop to change the order.
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Why Merge PDFs with ImageToolbox?
100% Secure
Your files are processed locally in your browser. No data is ever uploaded to our servers.
Blazing Fast
Merge dozens of documents in seconds. No waiting for uploads or downloads.
Free Forever
Unlimited merges for free. No hidden costs, sign-ups, or watermarks.
How to Merge PDF Files Online
- 1
Upload Files
Select your PDF files from your device, or drag and drop them into the upload box.
- 2
Arrange Separation
Drag and drop the file thumbnails to arrange them in the exact order you want them to appear.
- 3
Merge Documents
Click the "Merge PDF" button to combine your selected files into a single document.
- 4
Download
Your merged PDF will be downloaded instantly. The original files remain on your device.
Frequently Asked Questions
Common questions about our PDF Merger.