Merge as many PDFs and images as you want
No file limit. No page limit. No sign-up. Files never leave your device.
Unlimited & 100% freeDrop PDF or image files here or click to browse
JPG, PNG, WEBP, GIF, and more — mix and match in any order
✅ Your merged PDF is ready.
Download merged.pdfNo limits
Merge 2 or 200 PDFs and images in one go
Private
Files are processed in your browser, never uploaded
Instant
No queue, no waiting on a server
Free
No account, no watermark, no paywall
How this merge tool works
Drop in any mix of PDFs and images — JPG, PNG, WEBP, GIF, and most other common formats — and this tool combines them into a single PDF, in whatever order you arrange them. Each image becomes its own page sized to match the image, and each PDF's pages are copied in as-is, preserving the original quality. Everything runs directly in your browser tab, so nothing is ever uploaded anywhere: for a large batch, your device does the same work a server would, just without the round trip or the privacy trade-off.
This is useful for combining scanned receipts into one expense report, stitching a photographed multi-page document into a single file, merging chapters of a book, or assembling a set of signed forms and their supporting image attachments into one PDF to send.
Curious how this compares to other free PDF mergers? Read Why Is pdfunli.com's Merge Different From Other PDF Utility Sites?
Frequently asked questions
Is there really no limit on how many files I can merge?
No hard limit is enforced by the tool itself. In practice, very large batches (hundreds of high-resolution images, for example) are limited only by your device's available memory, since everything is processed locally.
Do you store or see my files?
No. Merging happens entirely in your browser using JavaScript — your files are never sent to any server. Closing the tab clears everything.
What image formats are supported?
JPG and PNG are embedded directly for the smallest output size. Other browser-viewable formats (WEBP, GIF, BMP, and more) are automatically converted on the fly so they can be merged too.
Can I reorder files before merging?
Yes — use the up/down arrows next to each file in the list to arrange the exact page order before you click Merge Files.
Will merging reduce my PDF's quality?
PDF pages are copied at their original quality with no re-compression. Images are embedded at their native resolution, so there's no quality loss from the merge process itself.