Most "edit this image" tools want to redraw the whole picture. That is the wrong shape of problem when the only thing that changed is a date, a price, or a venue name on a poster that was signed off months ago.
RetypePic works the other way around: you mark one rectangle around the text you want to replace, type the new wording, and everything outside that rectangle is copied byte-for-byte from your original file.
Three things the tool guarantees
These are properties of the pipeline, not marketing claims. They hold on every edit:
- The canvas never changes. The PNG you download has exactly the width and height of the file you uploaded. No rescaling, no re-encoding to a different size.
- Outside the box, nothing moves. The area outside your selection is a straight copy of the original pixels. We compare the two images after every render and the maximum channel difference outside the box is zero.
- Only the box is redrawn. Inside the rectangle the old text is erased and filled with surrounding texture, then the new text is re-rendered on top with a size, colour and spacing estimated from the pixels that were there before.
What happens inside the box
The erase step is a generative fill constrained to your rectangle. That is the part that can look imperfect: if the old text sat on a busy background, you may see faint traces at the edges.
The new text is not generated by the model. It is laid out deterministically with an open-source font chosen to match the letterforms already in the image — so it is crisp at any size and reproducible, but the match is a best fit, not a clone of the original typeface.
Be honest with yourself about the hard cases. Clean sans-serif or slab text on a plain or gradient background comes out convincing. Hand-lettered display faces, brush scripts, and text sitting on detailed photography are where you will notice the substitute font. If the poster is a hero asset, a designer redrawing it is still the better call.
The workflow
- Upload the finished image (JPG, PNG or WebP up to 20 MB).
- Drag a box around the line you want to change. Cover the full line, including descenders.
- Type the replacement text.
- Wait roughly a minute. The job runs as a background task, so the page can be closed and reopened.
- Compare with the before/after slider, then download the PNG.
What it costs
An edit is 2 credits. Failed edits are refunded automatically. Credit packs are $4.90 for 20 edits, $9.90 for 50, and $19.90 for 120, and credits stay valid for a year.
When you should redraw instead
Reach for a designer when the text you are changing is the centrepiece of the artwork, when it uses a custom or licensed typeface, or when it is set in perspective with shadows and texture. Local editing is for the ordinary case: the copy changed, the design did not.
