Updated: 7 September 2026

Banner design: worked examples and production checks

Start with a small, testable decision: which message comes first, whether the words separate from the background, and what will actually be in the exported file. The examples below are fictional exercises, not customer results or measured advertising outcomes.

Example 1: turn a long introduction into useful information

Draft: “Our neighborhood bakery is delighted to announce a very special customer appreciation promotion this weekend.” It conveys a mood but not the product, offer or restrictions. If the aim is to explain the offer, try separating those roles:

These details are fictional. Replace them with the actual terms before using the layout. If introducing a new shop is the priority, put the shop name and opening date first and move the discount below. Do not hide essential conditions just to make the heading larger.

Example 2: keep the background, change the text

These solid sRGB color pairs were calculated using WCAG relative luminance. The 4.5:1 criterion applies to normal web text; it is not certification of a printed banner or of the accessibility of an entire page. A photo or gradient behind the words needs separate assessment, and print material, lighting and size also matter.

Reference: W3C contrast explanation. The examples are rounded for display, not for deciding whether the criterion is met.

Example 3: an image's pixels are not its print dimensions

A 3,000×900px image placed over 300×90cm has 25.4ppi in each direction: 3,000 ÷ (300 ÷ 2.54). If you put it across 300×100cm without cropping or adding margins, the aspect ratio changes and the image distorts. Decide on cropping or margins first, then calculate the resolution at the placed size.

Before sending the design to a printer

• State finished width and height with units, quantity and finishing.
• Ask for the required bleed and safe area; do not assume one percentage works for all products.
• Inspect lettering in the exported file. SVG can contain raster photos and PDF can contain only an image.
• Ask whether the output is accepted for this job. The business-card editor's PDF is image-based at 300ppi.
• Check small text at the final physical size, and proof important colors on the intended material when possible.

More detailed worksheets (in Korean)

Resolution calculator and printer request template · 90×50mm card bleed diagram · Export format checklist. These pages are labeled Korean rather than presented as untranslated English articles.

Try the banner editor · Read the user guide