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Merge PDF Files Online for Free

Combine complete PDF files into one document, arrange their order, rotate individual pages when needed, and download the result without uploading the source files.

or drop PDF files here

Up to 20 files, 25 MiB each, 100 MiB total, and 500 pages

Files remain in your browser No file upload No account required

How to merge PDF files

  1. Select two or more PDF files.
  2. Set the file order and rotate any page that is sideways.
  3. Merge, safely name, and download the combined PDF.

Merge PDF questions

Does this upload my documents?

No. Validation and merging run locally in this browser.

Are page sizes or orientations changed?

Page sizes stay unchanged. Use the Rotate button on a page to turn only that page clockwise by 90 degrees.

Need to start from images? Convert JPG or PNG to PDF.

About this tool

Combine complete PDF files in one order

Merge PDF builds one document from every page in the files you select. You control the file order before processing, and the original PDFs remain unchanged.

Useful for

  • Join report chapters, invoices, or application documents.
  • Put separately scanned sections into one submission.
  • Reorder whole files without manually selecting every page.

Good to know

  • Page dimensions are preserved; an optional page rotation is added to that page's existing orientation.
  • Password-protected or unreadable PDFs must be unlocked first.
  • The combined file is created locally in this browser.
Practical guidance

Combine PDF files in the order you need

People searching for a PDF merger usually need one finished document, not another complicated workflow. PDFKaka lets you add complete PDFs, inspect their pages, arrange the file order, rotate pages when necessary, and create one combined PDF without sending the source documents to a remote service.

Merge multiple PDF files into one document

Add the PDFs together, place them in the required sequence, and review the page thumbnails before processing. The original files remain unchanged, so you can correct the order and create another copy if needed.

Merge PDF pages without reducing quality

The merger copies PDF pages into the new document instead of converting every page into a screenshot. That avoids unnecessary image recompression and preserves the visible source-page quality.

Combine PDF and JPG with the right workflow

JPG files must first become PDF pages. Use JPG to PDF or Scan to PDF for the images, then bring the resulting PDF into this merger with the other documents.

Questions people ask about this task

Can I merge PDF files online for free?

Yes. Add supported PDF files, arrange them, and download one combined document without creating an account.

Are my PDFs uploaded while they are merged?

No. The current merger reads and combines the documents in this browser, so their contents do not need to be uploaded to PDFKaka.

Should I use Merge PDF or Organize PDF?

Use Merge PDF when complete documents are already correct internally. Use Organize PDF when individual pages from several PDFs must be moved, rotated, or removed.