AI Toolbox

PDF Merge

Free online PDF merger. Combine multiple PDF files into one document with preserved order and quality. Rearrange files before merging. Local browser processing, no signup, no upload.

Click to upload or drag and drop

Max file size: 10MB

How to Use PDF Merge

  1. 1Upload multiple PDF files by dragging them or clicking the upload area
  2. 2Rearrange the file order using up and down arrows
  3. 3Remove any files you do not want to include
  4. 4Click the Merge button to combine the PDFs
  5. 5Download the merged PDF document

Frequently Asked Questions

Is there a file size or page limit for merging PDFs?

There is no strict file size limit, but very large PDFs may take longer to process. Since all merging happens locally in your browser, the only constraint is your device memory. Most documents merge in just a few seconds.

Does merging PDFs affect the quality of the original files?

No, original quality is completely preserved. PDF pages are combined directly without any re-encoding or compression, so text, images, and formatting remain exactly the same as in your original files.

Can I rearrange the PDF order before merging?

Yes, upload your PDF files and use the up and down arrows to put them in exactly the order you want. You can also remove individual files if you decide not to include them in the final merged document.

Is PDF Merge free, and do I need to sign up or upload my files?

PDF Merge is 100% free to use with no signup, no registration, and no usage limits. All processing happens locally in your browser - your files and data never leave your device, so no upload is required and your privacy is fully protected.