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Merge PDF

The Ultimate Guide to Merging PDF Files

Combining multiple PDF documents into a single, organized file is a fundamental task for legal professionals, students, and businesses. Handl provides a secure, client-side solution to merge PDFs without ever uploading them to a server.

Why Merge PDFs?

  • Consolidation: Combine monthly reports into a yearly summary.
  • Organization: Keep related documents, such as receipts and invoices, in one place.
  • Sharing: Send a single attachment instead of a dozen separate files.

How to Merge PDFs on Mac and Windows

Whether you're using macOS or Windows, the process with Handl is identical effectively removing cross-platform compatibility headaches.

  1. Select your files: Click "Choose Files" or drag and drop your PDFs into the merge area.
  2. Reorder files: Arrange the documents in the exact order you want them to appear in the final file.
  3. Merge: Click the "Merge PDF" button.
  4. Download: Instantly save the combined document to your device.

Troubleshooting Common Merge Errors

Sometimes, PDFs can be stubborn. Here are common issues and fixes:

  • Password Protection: If one of your files is encrypted, you must unlock it first. Use our Unlock PDF tool.
  • Corrupted Files: If a file fails to merge, try opening it in a browser and "Printing to PDF" to create a fresh copy.
  • Size Limits: Since Handl processes files locally, the only limit is your computer's RAM. You can merge gigabytes of data without hitting server caps.

Safety First: The Client-Side Advantage

Safety is paramount. When you use online mergers that require uploads, you risk:

  • Data Breaches: Server-side storage vulnerabilities.
  • Compliance Violations: GDPR issues when data crosses borders.

Handl eliminates these risks. Your files are processed 100% within your browser. Your data never leaves your computer.

Frequently Asked Questions

How to use

  • Upload the PDF files you want to merge.
  • Drag and drop to reorder them (coming soon).
  • Click Merge Files to process.
  • Download your new single PDF.