Create PDF Thumbnails | Rune

Thumbnails help identify documents quickly. Convert PDF first pages to small preview images for easier navigation.

What Are PDF Thumbnails?

Thumbnails are small preview images of document pages, typically used for:

• File browsers and document libraries
• Quick document identification
• Website document listings
• Search result previews

How to Create PDF Thumbnails

1. Open Rune's PDF to Image.
2. Upload your PDF.
3. Select only page 1 (for a single thumbnail).
4. Set resolution to 72 DPI (sufficient for thumbnails).
5. Lower quality for smaller files (60-70%).
6. Convert and download.
7. Resize if needed with our Image Resizer.

Thumbnail Settings

For typical thumbnails:

• Resolution: 72 DPI
• Quality: 60-80%
• Format: JPG (small) or PNG (sharp)
• Page: Usually first page

Common Thumbnail Sizes

Use Case	Recommended Size
File browser	100-150 px
Document grid	200-300 px
Webpage preview	300-400 px
Large preview	500+ px

Batch Thumbnail Creation

Creating thumbnails for many PDFs:

1. Convert first page of each PDF.
2. Download all thumbnails.
3. Resize to consistent dimensions.
4. Use in your document system.

Use Cases

Document Management Systems

Preview images make finding documents faster than reading filenames.

Websites

Show document previews before users download.

Portfolio Presentations

Display document samples visually.

Email Attachments

Include thumbnail preview in email body.

Conclusion

Thumbnails improve document organization and navigation. Use Rune's PDF to Image to create quick preview images from any PDF.