Strip Embedded Thumbnails
Remove the embedded page-thumbnail images that some PDF authoring tools save into a PDF — shrinks file size, removes a privacy leak.
1. Upload your file
How does the Strip Embedded Thumbnails work?
Remove embedded page thumbnails from a PDF. Some authoring tools (Quark, certain Adobe workflows, scanner PDFs) save a small low-res preview of each page inside the PDF as a /Thumb entry. These thumbnails inflate file size, are usually unnecessary (modern PDF readers generate thumbnails on the fly), and can leak a low-res preview of redacted content if the redaction was applied AFTER the thumbnail was saved. This tool walks every page and deletes any /Thumb entries.
🔒 Security & Privacy
All processing happens on your device. Your files never leave your browser, never touch our servers, and are not stored anywhere. Close the tab and the file is gone.
📱 Use it on any device
Works in any modern browser — Mac, Windows, Linux, iPhone, Android, and tablets. No installation, no app to download. Just open the page and start.
⚡ Quick & easy
Drag, drop, click. Most files process in seconds, not minutes. No watermarks added to your output, no per-day limits, and the tool always shows the result before asking you to download.
🎁 Always free, no signup
Free to use, every time. No account creation, no email required, no “trial” that converts to a paid plan. We make money from ads so you don’t have to pay.
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