Merge PDF – Combine PDF Files Online Free
Combine two or more unlocked PDFs into one file. Pick pages from each, set the file order, then download the merged PDF.
Free · No sign-up · No watermark · Merged in your browser
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What Does the Merge PDF Tool Do?
PDFdukan's Merge PDF tool lets you combine PDF files online free: add two or more unlocked PDFs, pick the pages you need from each one, set the file order, and download one merged PDF. The merge runs in your browser, so your files are not uploaded to our server.
How Do I Combine PDF Files?
Combining PDFs takes four steps:
- Add your PDFs. Tap Choose PDFs or drop two or more files. Each file appears as a card.
- Set the file order. Drag a card by its ⠿ handle, use ↑ and ↓, or sort by name or size.
- Pick the pages. Tap page numbers to leave pages out, or use the All, None or Range… buttons.
- Merge and save. Tap Merge PDFs, check the page count, then tap Download Merged PDF and name the file.
What Can You Control Before Merging?
Four controls shape the final document:
Drop blank pages or covers. Range… accepts entries like 1-3, 5, 7-10.
The top card becomes the first pages of the merged PDF.
Name A → Z lines up files like part-1 and part-2 in one tap.
The ✕ button drops a wrong file and keeps the rest.
What Does the Merged PDF Keep?
Our test merges with links, bookmarks and form fields gave this result:
| Kept | Page content, selectable text, image resolution, web links |
|---|---|
| Not kept | Bookmarks and working fill-in form fields |
| Not accepted | Password-locked or damaged PDFs, and non-PDF files |
| Number of files | Two or more; your device's memory sets the practical limit |
When Do People Merge PDFs?
Most merges serve a form that takes one file:
- A resume and cover letter for a job portal.
- W-2s, 1099s and receipts at tax time.
- Pay stubs, bank statements and an ID for a rental application.
- Scanned chapters for one class submission.
How Do I Get a Clean Merged File?
Fill in any forms before you merge, because form fields stop working afterwards. Pages keep their original order inside each file, so to mix pages between files, merge first and then use Rotate, Reorder & Delete PDF Pages.
File too big for a portal? Shrink it with Compress PDF. For photos, use Image to PDF first.
Are My PDFs Uploaded?
No. The Merge PDF tool joins your files with code running in your browser, so they are not sent to a PDFdukan server. The page still loads site files, analytics and ads.
Frequently Asked Questions
Yes, the Merge PDF tool is free, needs no account and adds no watermark to the merged file.
You can merge two or more PDFs with no fixed upper limit. Very large files can fail on a phone, so merge them in smaller batches.
No, merging does not reduce quality. Pages are copied, not redrawn, so text stays selectable and images keep their resolution.
No, locked PDFs are rejected. Open it with its password in a PDF reader, save an unlocked copy, then add that copy.
Not directly. Convert the images with Image to PDF first, then merge that PDF with the others.
Yes, Split PDF pulls pages or ranges back out into separate files.