Proof the Poster

Check a poster image against your approved copy: find extra, missing and changed words, prices, dates, hours and phone numbers.

Posters and flyers go out with mistakes that are easy to miss: a price off by a digit, a phone number with two digits swaped, or a line nobody wrote. Proof the Poster compares the text in your poster image with the copy you approved and shows you every diffrence. We made it because checking by eye at the end of a long day is the kind of job where it looks fine and then it is not fine. How it works 1. Paste your approved copy: the exact words, prices, dates, opening hours and phone numbers. 2. Drop, paste or choose the poster image, or right-click any image on a web page and choose "Proof this image against my copy". 3. Press "Check the poster". The text is read inside your browser by software bundled with the extension, then compared with your copy. 4. Read the result: items that are extra (not in your copy), missing (not found in the image) or changed are highlighted, and extra or changed text is outlined on the image. What it compares: words, prices (4.50 and $4.5 count as the same price), dates (2 November 2026 and 02/11/2026 match), times (5pm and 17:00 match) and phone numbers, digit by digit. Free and paid - Free: 5 checks a day, local text reading that works offline, full highlights. - Pro (paid, sold by Dot Tech Solution, not by Google): no daily limit, saved copy sets, CSV export of differences, and an optional vision model that reads the image through your own OpenRouter key. Pro is $4 a month or $19 once and uses a licence key you activate inside the extension. Privacy: your copy and images stay in your browser. We run no servers for the extension and receive none of your data. The image goes to another service only if you choose the optional vision engine, and the licence key is checked with our seller platform only if you use Pro. Details in the privacy policy. Good to know: reading text from an image is not perfect, so look at flagged items on the picture before you decide. The extension helps you proofread; it does not replace a human check. Not affiliated with or endorsed by Google, Canva or any tool that may have made your poster image.