Overview
Introduction
This tool stamps text onto an existing logo, entirely in your browser, using a hand-authored pixel font.
It's useful for quickly adding a tagline, year, or short label under or beside an existing mark.
What Is Logo Text Adder?
A logo-focused wrapper around the site's general PNG text adder: it reads an uploaded logo's pixels and draws each character of your text using a built-in 5x7 bitmap font at the position, scale, and color you choose.
Because the underlying function is pure (no DOM), it can't call into canvas's native text rendering, so it ships its own minimal font instead.
How Logo Text Adder Works
For each supported character, the tool looks up its 5x7 pixel pattern and stamps the 'on' pixels onto the logo at the current cursor position, scaled by your chosen integer factor, then advances the cursor for the next character.
Unsupported characters (anything outside A-Z, 0-9, and space) are skipped but still advance the cursor, keeping spacing predictable.
When To Use Logo Text Adder
Use it to add a short tagline, establishment year, or department name onto an existing logo mark.
It's also handy for quickly labeling a logo variant (like 'BETA' or 'V2') during internal review.
Often used alongside Text to Logo Converter, Logo Colors Changer and Logo Color Picker.
Features
Advantages
- Runs entirely client-side; nothing is uploaded to a server.
- No font licensing concerns, since the font is a small hand-authored bitmap built into the tool.
- Precise pixel-level control over text position, scale, and color.
Limitations
- Only supports uppercase A-Z, 0-9, and spaces — no lowercase glyphs, punctuation, or non-Latin characters.
- The built-in bitmap font is basic and blocky; it's not a substitute for real typography in a finished brand asset.
Examples
Best Practices & Notes
Best Practices
- Preview the result before downloading, since the built-in font's fixed-width glyphs can look different from a logo's actual brand typeface.
- Increase the scale for text meant to be read at a distance or on a large canvas.
Developer Notes
This lib function is a thin, validating wrapper around the already-shipped `addTextToPng` from the general PNG category, reusing its exact 5x7 bitmap font — no new glyph rasterization was written for the logo use case.
Logo Text Adder Use Cases
- Adding an establishment year or tagline under a logo
- Labeling internal draft or beta logo variants
- Creating a simple text overlay for a quick mockup
Common Mistakes
- Expecting lowercase or punctuation characters to render — they're silently skipped.
- Positioning text outside the canvas bounds, where it will be clipped instead of resizing the canvas.
Tips
- Use all-caps text since lowercase input is automatically uppercased anyway.
- Combine with the Logo Color Picker to match the stamped text color to an existing brand color in the logo.