PDF UTILITY CLIENT-SIDE PRIVACY

Merge PDF Files

Combine two or more PDF files into a single unified document in seconds without file size limits.

Select Multiple PDF Files to Merge
Hold Shift or Ctrl to select 2 or more PDF documents from your computer.

How to Use Merge PDF Files

  1. Click 'Select PDF Files' and pick 2 or more files from your device.
  2. Arrange the document order using the move up/down controls.
  3. Click 'Merge PDFs'.
  4. Save your consolidated PDF document instantly.

Working Principles & Technical Details

The merger parses the document catalog of each input file, deep-copies constituent page trees, dictionaries, and embedded font/content streams, resolves object identifier collisions, and constructs a clean unified PDF trailer.

Supported Formats

Input: Multiple valid .pdf files. Output: Consolidated .pdf document.

Usage Limits & Specifications

Encrypted or password-locked PDFs must be unlocked prior to merging.

Data Privacy & Security

PDF merging takes place inside your browser environment using PDF-Lib. Files are never sent across the internet. To read more about our strict privacy practices, review our complete Privacy Policy.

Frequently Asked Questions

NEWS1UP tools are 100% free with no registration or subscription required.
Yes. Each merged page maintains its individual dimensions and orientation (e.g. mix of A4, Letter, and Legal).

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