Merge PDF Online — Free
Merge PDF online — free, no upload, no signup, runs entirely in your browser. Combine two or more PDFs into a single file with drag-and-drop ordering, no page count limit beyond your device's memory, and zero quality loss. Perfect for combining invoices into one statement, stitching scanned chapters into a single book, or assembling a contract bundle for signing. Because the merge runs locally with pdf-lib, even confidential business documents stay on your device. Output is a clean PDF — no watermark, no metadata, no tracking.
How to merge pdf online
- Drop your PDF file into the tool above — it loads locally with pdf-lib.
- Pick the option that matches "merge pdf online" (page range, size target, or output format).
- Click the action button and download the new PDF when processing finishes.
Common use cases
- Sharing only the relevant pages of a long contract or report
- Meeting strict file-size limits on government or university portals
- Combining or separating chapters of scanned books and manuals
- Preparing PDFs for email attachment under Gmail and Outlook caps
- Cleaning up scanned documents before archiving or signing
Frequently asked questions
How many PDFs can I merge at once?
There's no enforced limit — merge as many as your browser memory can hold (typically 50+ files of normal size).
Will the merged PDF lose quality?
No — merging is lossless. Pages are copied byte-for-byte; fonts, images, and forms are preserved.
Is it really free with no watermark?
Yes. No watermark, no signup, no daily cap, no premium tier.
Does it work on mobile?
Yes — the merger works in Chrome, Safari and Firefox on phones and tablets.