The logo file is tiny. Can it still work on a large sign?
Use genuine vector artwork for graphics such as logos and diagrams that need to scale cleanly, and suitable raster images for photographs and other pixel-based detail. Check the content inside the file as well as its extension: a PDF, for example, can contain both. Placing a small image inside a vector-capable document does not recreate detail that the image never contained.
Put the advice into practice
Make your expertise look as considered as the work behind it
Bring brand, sales material and digital design into one coherent presentation.
Discuss your design briefLook at how the image is built
Raster artwork stores an image as pixels. Its usable detail depends on the source image and how those pixels are reproduced at the intended size. Vector artwork describes shapes and paths, which makes it well suited to many logos, icons and diagrams that need to be resized.
Adobe’s raster and vector comparison explains the underlying distinction. It is useful to understand that distinction without turning file extensions into a guarantee. A vector-capable format may include an embedded raster photograph, and a PDF can combine live text, paths and images.
The right choice follows the content. A photograph contains tonal and textural detail that is naturally handled as a raster image. A simple logo often benefits from a clean vector master. Some illustrations combine both approaches. Ask what the supplier needs to produce, rather than assume one format is always superior.
Match artwork to its intended use
| Content or application | Useful source | Check before delivery |
|---|---|---|
| Logo on a large sign | Approved genuine vector master where available | Correct version, paths, colours and any embedded images |
| Photograph in a brochure | High-quality raster original suited to final reproduction | Dimensions, crop, compression and supplier requirements |
| Diagram in a report | Editable vector or appropriate source document | Text, line weights and clarity at the published size |
| Website image | A suitable optimised output from the master | Display dimensions, clarity, accessibility and loading cost |
| Mixed-content print PDF | The supplier’s agreed exported production file | Fonts, paths, image detail and output specification |
Keep the source master and the delivery output separate. The supplier may need a particular PDF or image format even when the original was made in another application. A well-prepared handover identifies what each file is for and preserves the source needed for future changes.
A hypothetical sign job shows why file size misleads
Imagine an organisation supplying a logo for a large reception sign. It has a small JPEG copied from an email signature and a compact PDF supplied during the original identity project. The JPEG file size is larger, but that does not prove it contains more usable artwork. The PDF may contain clean paths, or it may simply contain the same small image.
The appropriate check is to inspect the actual content and ask the sign supplier to confirm suitability at the final size and viewing conditions. If the PDF contains genuine vector artwork, it may provide the required source. If it contains a low-detail image, the extension alone does not solve the problem.
Resaving the JPEG as a PDF or placing it in an illustration document does not restore missing detail. Automated tracing can produce shapes, but the result needs review against the approved logo. Letterforms, spacing, curves and small features can change during reconstruction. Treat any recreated artwork as work requiring approval, not as an unchanged original.
This is an invented teaching scenario. It illustrates why source inspection is more useful than choosing the file with the largest number of bytes.
Check the final reproduction conditions
For raster content, discuss final dimensions, crop and effective image detail with the production supplier. A single resolution rule does not fit every application: a close-read brochure photograph and a large-format image viewed from farther away have different conditions. Avoid promising suitability from a screen thumbnail alone.
For vector content, check that paths and text reproduce as intended and that required fonts or outlines are handled according to the agreed workflow. Keep editable text in the source where it is needed for future amendments, while preparing the delivery version the supplier requires. Confirm any licence and file-sharing conditions that apply.
Inspect exported artwork at the intended scale. Fine lines, small text and dense diagrams can become difficult to read even when the underlying file is vector. Scalability preserves geometry; it does not make every design readable at every size.
Store approved masters with clear names and a short explanation of their uses. Include a sensible route for requesting a new output instead of encouraging staff to improvise from a screenshot. Our guide to brand asset handover covers that practical organisation of files.
When briefing design work, include the final application and production supplier’s requirements. That allows the artwork to be prepared for the job rather than judged by its extension after the deadline is close.
