Find white, invisible, tiny, and off-page text before sharing a PDF with AI. Runs in your browser.
The tool locates each text item and renders the page in your browser. It then compares the pixels in that area with the surrounding background to find text that visually blends into the page.
It also checks invisible text mode, very small fonts, and text outside the page. It does not analyse the meaning of words: results are visual or structural review signals.
A document may contain coursework, client material, or private records. The analysis runs locally with PDF.js. PDFShore does not receive the file or extracted text.
No. A signal means text deserves a review. Small text can be a footnote, and white text can be a design artifact. Check the original page before drawing conclusions.
It detects text that visually blends into the page background, invisible text mode, very small fonts, and text outside the page. Word content never affects detection.
Not reliably. A scanned PDF without an embedded text layer has no text objects to inspect. Use OCR first if you need to review a scan.