Merge PDF

Combine up to 20 PDF files into a single document. Drag the file cards to reorder pages, then download the merged PDF — no account, no watermark.

Pick the PDFs to merge

Drop PDF files here or click to choose

Up to 20 files · 50 MB each

Set the page order

Drag a card up or down to reposition it. The merged PDF follows the order shown here, top to bottom.

No PDFs added yet.

Your PDF is processed in server memory and discarded the moment the response leaves our server. Nothing is saved to disk, and nothing is logged.

Tips

Flatten before you merge

Forms, comments, and unsaved annotations can render differently once pages live inside a merged file. If any contributor used a viewer with form fields, ask them to print to PDF first — the merged copy will then look exactly like the source on every device.

Split by sections, not by page count

A 60-page report rarely splits cleanly every 10 pages. Use the page-range mode to cut at chapter boundaries — share the executive summary as pages 1-4, the methodology as 5-22, and the appendix as 23-60, each with a meaningful filename.

Rotation is metadata, not pixels

Rotating a page changes a single number in the PDF — it never re-renders the content. That is why even huge scanned files rotate instantly with no quality loss, and also why a few legacy viewers occasionally ignore the rotation flag. Saving a rotated copy here bakes the new orientation into the file so every reader displays it the same way.

Common Use Cases

📑

Assemble a contract bundle

Merge the agreement, schedules, and attachments into one file in the right order before sending it for signature.

🧾

Submit invoices and receipts

Combine a month of expense receipts into one PDF that mirrors your expense report so reviewers never have to open ten attachments.

🎓

Tidy lecture notes

Drop weekly handouts into the merger to build a single course pack, or split the final pack into topic-sized chunks for revision.

Frequently Asked Questions

Are my PDFs uploaded somewhere permanent?

No. Files arrive over HTTPS, live only in RAM while we compute the result, and are discarded the instant the response is sent back to your browser. We never write them to disk and we keep no log of file names or contents.

What is the file size limit?

Each file may be up to 50 MB and a single request may total up to 100 MB. Merge accepts at most 20 PDFs at a time. These caps protect the service from runaway memory use and are higher than most free PDF services.

Do you support password-protected PDFs?

Not yet. Remove the password in your viewer first (Preview on macOS, Acrobat, or any reader that lets you re-save without protection) and then upload. We never accept passwords ourselves so attackers cannot use our service as a brute-force oracle.

Will my downloaded PDF have a watermark?

No. We never add watermarks, ads, or hidden metadata to the output. What you download is just the result of the operation you asked for — nothing else is injected into the file.

Can I process the same PDF for hours?

You can run many operations in a row from the same browser tab — the page silently refreshes its API token every couple of hours so you do not have to reload. A short rate limit of 30 requests per minute applies per IP to keep the service fast for everyone.