Remove Attachments
Remove embedded files and attachments
Remove Thumbnails
Remove embedded page thumbnails
This tool processes your files entirely in your browser. Your documents never leave your device.
Input
Drag & drop PDF files here
or Browse Files
PDF, PDF•Max size: 100MB per file
Output
Upload a PDF file
About This Tool
Remove embedded thumbnails from PDF files with our free online thumbnail stripper. Delete unnecessary preview images that bloat file sizes, as modern PDF viewers like Adobe Acrobat Reader generate thumbnails dynamically.
Older PDFs and files from certain applications include embedded thumbnail images for each page, significantly increasing file size. Since all modern PDF viewers generate thumbnails on-the-fly, these embedded images are redundant and can safely be removed.
All thumbnail removal happens locally in your web browser. Your documents never upload to external servers, ensuring privacy for business documents and files requiring size optimization.
Perfect for reducing file sizes of older PDFs, optimizing documents from legacy applications, cleaning up files exported from older versions of Adobe Acrobat, or streamlining PDFs for modern distribution. Safe operation that removes only redundant thumbnail data while preserving all document content and functionality.
Frequently Asked Questions
- Is Remove Thumbnails free?
- Yes, completely free with no hidden costs, subscriptions, or usage limits. All tools are available at no charge.
- Is it safe to use Remove Thumbnails?
- Yes, 100% safe. All processing happens locally in your browser. Your files are never uploaded to any server and never leave your device.
- What is the maximum file size?
- You can process files up to 100MB. Since everything runs in your browser, processing speed depends on your device.