Merge PDF
Merge multiple PDF files into one document — AI organize, optimize & premium merge modes
How to use Merge PDF
Drag & drop your file into Merge PDF or click to browse. Nothing is uploaded to a server — everything stays on your device.
Pick your settings and click the action button. Merge PDF processes everything instantly and locally in your browser.
Download your result instantly. Run Merge PDF again as many times as you like — free forever, no watermark.
Frequently Asked Questions
Is Merge PDF free?
Yes — unlimited merges, all 10 merge modes, AI organize included free.
How many PDFs can I merge?
Unlimited files in one session. Drag to reorder pages, exclude pages, and use AI to detect blanks and duplicates.
What are the merge modes?
Normal, Fast, Lossless, Compressed, PDF/A, Print, Book, PAN Card, Passport, and Certificate — each tuned for different outputs.
Are files uploaded to a server?
No — 100% browser processing. Your PDFs never leave your device.
Can I merge images and ZIP files, not just PDFs?
Yes. Drop in JPG, PNG or other images and they are converted to pages automatically. You can also drop a ZIP and every PDF and image inside it is added, or use the Camera button on your phone to photograph a document straight into the merge.
Will merging reduce the quality of my PDFs?
Not unless you ask it to. Lossless mode copies every page exactly as it was, so the merged file is identical in quality to the originals. Compressed and Print modes trade some quality for a smaller file — pick whichever suits your output.
Does Merge PDF work on mobile?
Yes — it works the same on Android and iPhone as on desktop, including drag-to-reorder. You can also merge straight from your camera, which is handy for combining photographed documents into one PDF.
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