Guide

How to Merge PDF Files

Combine several PDFs into one clean document in a few clicks. Here is everything you need to know.

Short answer: Use our free PDF merger, add your files, arrange them in the right order, and download the combined document. Merging runs in your browser, so your files are not uploaded anywhere.

Why Merge PDFs?

People combine PDFs for many reasons, and almost all of them are about staying organized:

  • Joining multiple signed documents into a single file to send or archive.
  • Combining scanned pages into one complete file.
  • Putting together a report, invoice set, or application package that belongs in one place.
  • Creating a single file for upload portals that only accept one document.

One combined file is easier to share, store, and keep track of than a folder full of loose PDFs.

What to Check Before Merging

  • File order: Decide the order pages should appear before you start. You can reorder files in the tool with the up and down controls.
  • Password protection: DRM-protected PDFs cannot be merged. Remove passwords first if you are able to.
  • File size: Each file can be up to 200 MB. If your PDFs are huge, consider compressing them first so the final file is easier to send.

How to Merge PDFs in 4 Steps

  1. Open the merger. Visit pdf.openservicetools.com and select the PDF Merger tab.
  2. Add your PDFs. Drag and drop files into the list, or click to browse. There is no limit on the number of files you can combine.
  3. Reorder. Use the arrow buttons to arrange the files in the order you want them to appear in the final document.
  4. Merge and download. Click the merge button and download the combined PDF. Your originals stay unchanged.

Merging PDFs with Images

Sometimes you need to combine documents and pictures together, for example a cover letter plus a photo. Our PDF & image merge tool lets you add PDFs and image files (JPG, PNG, and more) into a single PDF, with options for page orientation and margins. If you are starting from images only, the image-to-PDF converter is the simpler option.

Privacy When Merging PDFs

Documents merged online can contain personal or confidential information. With our tool:

  • Browser-only processing: Merging happens entirely on your device.
  • No account or sign-up: Nothing to register and no personal information collected.
  • No storage: Files are not uploaded or retained.

Frequently Asked Questions

No. You can combine as many PDFs as you need, with each file up to 200 MB.

Yes. Use the up and down arrow buttons to reorder files before merging.

No. The pages of each PDF are copied into the new file as-is, so quality is preserved.

Combine Your PDFs Now

Merge files in seconds with our free, private, browser-based tool.

Open PDF Merger