Redact Screenshots Without Uploads
Black out selected API keys, credentials, faces, and private text in images. Selected pixels are overwritten on a clean canvas before exporting a single-layer PNG.
Redact PDF, Table, or Image
PDF · CSV · TSV · XLSX · PNG · JPEG · WebP · BMP
Blackout and blur leave different results
Blur and pixelation retain visual patterns that may expose short text or recognizable content. Use opaque blackout regions for sensitive areas, and review the exported image for missed content.
RedactPDF.tools enforces destructive solid-color blackout: the underlying RGB values are replaced with pure black (#000000) inside a fresh HTML5 Canvas pixel buffer. Exported PNGs do not contain the original image file or its source metadata. Content outside your selected regions remains visible.
Black Out API Keys and Private Screenshot Details
A support screenshot can expose tokens in a terminal, an email in a browser tab, or a name in a notification. Cover the complete value and inspect the surrounding interface, not just the main panel. Manual selection is available for any region; optional five-language OCR helps locate text but does not automatically recognize every secret or detect faces.
Fresh PNG Export Instead of a Blur Filter
PNG, JPEG, WebP, and BMP inputs export as a new PNG rather than a layered editing file. Reopen that PNG at full resolution to check the edges of each blackout. The original filename is retained in the output name and may need to be changed before sharing.
Questions about this workflow
How can I redact a screenshot without uploading it?
Select a local image, mark sensitive regions manually or review five-language OCR suggestions, and export a fresh PNG. Regions can be moved and resized. The selected pixels are overwritten with opaque black. Inspect the downloaded image at full resolution.
Should I blur or black out sensitive text in an image?
Blur and pixelation retain visual patterns. This tool uses solid blackouts instead of a blur filter to replace pixels in selected regions. Content outside those regions remains visible, so include the complete identifier and review the image carefully.
Can I hide API keys, email addresses, or faces in a screenshot?
Yes, by selecting each complete region. Local OCR can help locate printed text in English, German, French, Spanish and Japanese, but it does not detect faces or guarantee that every API key is found. Review code panels, browser tabs, notifications and image edges.
What happens to the source image format and metadata?
PNG, JPEG, WebP, and BMP inputs are rendered to a clean canvas and exported as a single-layer PNG. The original image file and its source metadata are not embedded in that PNG. The export filename still contains the source name, so rename it if necessary.