Merge Scanned PDFs into One File | Rune

Scanned documents present unique challenges, but merging them works just like any other PDF. Here's how to combine your scanned PDFs into organized, unified files.

Why Merge Scanned PDFs?

Create Complete Records

Scanned multi-page documents often become separate files. Merge them into one complete record.

Organize Historical Documents

Digitized archives become more manageable when related documents are combined.

Simplify Sharing

One merged file is easier to email than a dozen scanned pages.

Better Archiving

Combined scanned documents are easier to store, find, and backup.

Common Scanned PDF Merge Scenarios

Scenario	Example
Receipt bundles	All monthly receipts in one file
Medical records	Complete patient history
Legal documents	Full contract with all pages
Historical archives	Related letters or documents
Research materials	Scanned book chapters

How to Merge Scanned PDFs

1. Scan your documents (if not already digital).
2. Ensure each scan is a PDF (most scanners offer this option).
3. Open Rune's PDF Merge.
4. Upload all scanned PDFs.
5. Arrange in correct order (drag to reorder).
6. Merge and download.

Tips for Better Scanned PDF Merges

Scan Quality

• Use at least 300 DPI for text clarity.
• Higher DPI for images or detailed documents.
• Consistent DPI across all scans for uniform quality.

Page Orientation

Ensure all pages are correctly oriented before merging. Upside-down pages in a merged file look unprofessional.

File Size Considerations

Scanned PDFs can be large. Enable compression when merging to reduce final file size—especially important for email attachments.

Naming Convention

Name scanned files with page numbers (Scan_01.pdf, Scan_02.pdf) to keep track of order easily.

Special Considerations for Scanned Documents

Consideration	Recommendation
Text searchability	Use OCR before merging if needed
Large file sizes	Enable compression
Mixed page orientations	Correct before merging
Color vs. grayscale	Consistent scanning settings

Privacy for Sensitive Scans

Scanned documents often contain sensitive information: IDs, medical records, financial statements. Rune's PDF Merge processes everything locally in your browser—your sensitive scans never leave your device.

Conclusion

Scanned documents are just PDFs, and merging them is equally simple. Use Rune's PDF Merge to create complete, organized files from your digitized documents.