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PDF Tools / Stable

Merge PDF Online

Combine two or more PDFs into one file in upload order or sorted by file name.

Quick answer

What does Merge PDF do?

Combine two or more PDF files into one document and choose upload order or file-name order. NoLogPDF copies the pages into a new PDF locally in your browser, so the selected files are not uploaded to a backend conversion server.

Use Merge PDF when you need to combine multiple PDF files into one PDF. Common uses include combine invoices into one monthly record, join scanned pages into one application, assemble report sections before sharing.

Input
PDF files
Processing
In this browser
File upload
No
Price
Free

Designed around the task

Why use Merge PDF?

Focused controls, local processing, and clear limits help you finish the job without sending the document to a conversion server.

Focused results

Copies every page from the selected PDFs into one new PDF.

Useful browser controls

Uses the selected file order and does not edit the original files.

Desktop and mobile

Use Merge PDF in a current desktop or mobile browser without installing a separate app.

Simple local workflow

Create an output you can inspect before sharing.

Private by design

The selected PDF files are processed by JavaScript running in this browser for Merge PDF. NoLogPDF does not send them to a backend conversion API, and file names, contents, form values, passwords, and output data are excluded from site analytics.

Automatic file recognition

NoLogPDF checks the selected file in your browser and shows the controls available for Merge PDF.

How to use Merge PDF

  1. Choose two or more PDF files.
  2. Select Upload order, File name A-Z, or File name Z-A.
  3. Choose Merge PDFs.
  4. Review and download merged.pdf.

What Merge PDF changes

  • Copies every page from the selected PDFs into one new PDF.
  • Uses the selected file order and does not edit the original files.

Browser-only privacy

The selected PDF files are processed by JavaScript running in this browser for Merge PDF. NoLogPDF does not send them to a backend conversion API, and file names, contents, form values, passwords, and output data are excluded from site analytics.

Limits to know before using Merge PDF

  • Password-protected PDFs may need to be unlocked with an authorized password first.
  • Large combined files can exceed browser memory; bookmarks, attachments, forms, and digital signatures should be reviewed in the result.

Practical guidance

Combine PDFs in the order recipients should read them

The merge operation copies pages from each selected PDF into one document. Arrange complete documents before processing, and use page reordering afterward only when individual pages need adjustment.

Recommended workflow

  • Add files in the intended document order.
  • Open password-protected inputs first if the browser cannot read them directly.
  • Compress the combined file afterward when email or portal limits are important.

Check the result

  • Confirm the first and last page of every source document.
  • Review page orientation where portrait and landscape PDFs meet.
  • Verify forms, links, bookmarks, and signatures when those features are important.

Common uses for Merge PDF

  • Combine invoices into one monthly record.
  • Join scanned pages into one application.
  • Assemble report sections before sharing.

Next step: Continue this workflow with Split PDF.

Merge PDF questions

How does Merge PDF work?

Combine two or more PDFs into one file in upload order or sorted by file name. Choose two or more PDF files. Select Upload order, File name A-Z, or File name Z-A. Choose Merge PDFs.

Does Merge PDF upload my PDF files?

No. The selected PDF files are read by code running in this browser for this operation. NoLogPDF does not send them to a backend conversion API or include document data in analytics.

What does Merge PDF change in the output?

Copies every page from the selected PDFs into one new PDF. Uses the selected file order and does not edit the original files.

What limits should I know before using Merge PDF?

Password-protected PDFs may need to be unlocked with an authorized password first. Large combined files can exceed browser memory; bookmarks, attachments, forms, and digital signatures should be reviewed in the result.

Published and maintained by NoLogPDF

How this tool page is checked

The instructions describe this browser implementation, its expected output, and its known limits. Core workflows are exercised with local fixtures, output files are validated where the format allows, and mobile behavior is checked at a narrow viewport.

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