OOnDevice

Merge PDF

Combine multiple PDF files into one — right in your browser. Drag to reorder, then download your merged PDF.

Works offlineNothing uploaded

Drop PDF files here — they stay on your device

Add 2 or more PDFs to merge

Files stay on your device

Add at least 2 PDFs to merge them together.

How to use it

1

Upload PDFs

Click the upload area or drag and drop multiple PDF files.

2

Arrange pages

Drag to reorder the files in your preferred sequence.

3

Merge and download

Click Merge and download your combined PDF file.

When to use Merge PDF

A founder needs to email a board packet — the agenda, the financial model, and the appendix are three separate PDFs, but the board expects one clean file. Drop all three here, drag them into sequence, and the pages are rewritten in place on your computer, producing a single PDF without ever touching a server. The merge happens in this browser tab and the combined file downloads straight to your desktop. This is also the go-to step when you're packaging a legal filing with multiple exhibits, bundling monthly bank statements for an accountant, or submitting a portfolio that has to be one attachment. The final PDF opens in any reader exactly as expected.

  • Combine a cover letter, resume, and references into one job application
  • Package three exhibits into a single PDF for a legal filing
  • Bundle quarterly bank statements for an accountant into one file

About this tool

You've got a cover letter in one PDF, a portfolio in another, and a references page in a third — but the application form wants a single file. Drop them all here, drag into order, and download a clean merged PDF in one step. Works just as well for combining monthly bank statements, stitching together a multi-chapter report, or packaging all the exhibits for a legal filing. No file size limits beyond what your browser can handle, and nothing is uploaded anywhere — it all runs locally.

Tips

  • Drag files into the numbered list to reorder them before merging — the output pages follow that sequence exactly.
  • If one PDF is password-protected, the tool will still attempt to load it. Remove the password with Unlock PDF first for reliable results.
  • For large batches (10+ PDFs), name your source files with leading numbers (01-cover.pdf, 02-body.pdf) before uploading — easier to spot a misplaced file in the drag list than untangling generic names like "scan-final-v3.pdf".

Frequently asked

How do I merge PDF files for free?
Upload your PDF files, drag to reorder them, then click Merge. The combined PDF downloads instantly. No signup or payment required.
Is merging PDFs here private? Does anything get uploaded?
Nothing leaves your computer. The PDF library reads each file from your local disk, stitches the pages together in browser memory, and hands you the finished file as a download. No server is involved at any point, and the tool continues to work offline once the page has loaded.
How do I control the page order in the merged PDF?
Drag the file cards up or down in the list before you click Merge — the numbered badges show exactly the order pages will appear. Files are merged in list order from top to bottom, so move whichever document should open first to position 1.
Is there a limit on how many files or how large the combined PDF can be?
There is no hard file count or size cap built into the tool. In practice, very large combined documents (hundreds of pages or several hundred MB) can slow down or exhaust browser memory. If a merge stalls, try splitting your batch into two smaller merges and then combining the results.
Do bookmarks, outlines, or interactive form fields survive the merge?
Page content — text, images, and vector graphics — copies across intact. However, the underlying copy-pages routine does not carry over document-level bookmarks, named destinations, or interactive form fields. If preserving those elements matters, use a dedicated desktop PDF editor instead.
What happens if I accidentally drop a non-PDF file into the upload zone?
The tool filters by MIME type and file extension, so only files ending in .pdf or identified as application/pdf are accepted. Any other file type is silently ignored and will not appear in the list.
Can I merge PDFs offline — does the tool need an internet connection?
After the page loads once, no internet connection is required. All processing runs on your own hardware, so you can merge documents on a plane, in a dead zone, or on an air-gapped machine.