Adobe Certified Professional Illustrator common mistakes
Adobe Certified Professional Illustrator · Understand the traps and how to avoid them.
Submitting a portfolio or client project without written permission for any third-party fonts, stock photos, or licensed artwork used in it.
Candidates treat a personal or class project as automatically theirs to show, forgetting that embedded stock assets and commercial fonts carry license terms that usually forbid redistribution or portfolio display without attribution or an extended license.
What to do instead
Before using any asset, record its license type and terms; for portfolio use, favor assets whose license permits display, keep proof of license, and credit or replace assets that do not.
Delivering a rasterized JPEG of a logo to a client instead of the editable vector source file.
Candidates confuse the visual preview with the deliverable and assume any exported image is acceptable, not realizing a logo is a scalable identity asset that the client must be able to resize and edit.
What to do instead
Treat native .ai (or .eps/.svg) as the primary deliverable for logos and illustrations, and supply PNG/JPEG only as secondary previews; confirm the file-format clause in the contract before delivery.
Designing at 72 ppi in RGB and then expecting a print vendor to produce a sharp, color-accurate result.
Candidates carry screen habits into print work and do not connect resolution, color mode, and physical output size, so a file that looks fine on screen fails at press size.
What to do instead
Set document raster effects and placed-image resolution to at least 300 ppi at final print dimensions, work in CMYK (or the vendor's specified profile) for print, and check effective resolution after scaling placed images.
Scaling a placed raster image up inside Illustrator and assuming the image gains detail.
Candidates see the bounding box grow and judge quality from the on-screen preview, not understanding that a linked raster has a fixed pixel count and effective resolution drops as it is enlarged.
What to do instead
Check the link's native pixel dimensions against its placed size, keep effective resolution at target output ppi, and re-source or resample a higher-resolution original rather than enlarging in the layout.
Building a multi-element illustration entirely on one layer with everything grouped, then being unable to isolate or edit a single object.
Candidates focus on appearance and skip structural organization, so later edits require ungrouping and hunting, and overlapping objects are hard to select.
What to do instead
Name and use layers for logical groups of content, keep related objects grouped within those layers, and use the Layers panel and isolation mode to select and edit individual objects.
Drawing shapes freehand with the Pencil or Paintbrush when the artwork requires precise geometry, then patching the result with many manual anchor points.
Candidates default to the tool they find intuitive and do not match tool choice to the precision the brief demands, producing wobbly edges and bloated paths.
What to do instead
Use shape tools, the Pen tool, and geometric construction for precise forms, and clean up any freehand path with smooth and simplify so it has the minimum anchors needed.
Leaving text as live, unoutlined type in a file sent to a printer or another designer who lacks the font.
Candidates assume the recipient has the same fonts installed, so text reflows or substitutes when the file opens elsewhere.
What to do instead
Package the file (File > Package) to collect fonts and links, or convert type to outlines on a copy before handoff, keeping the editable original archived.
Exporting a print-bound PDF without bleed, crop marks, or the correct color profile, then discovering the trim is wrong at proof.
Candidates use a default PDF preset intended for screen or general sharing and never verify the output settings against the printer's specification.
What to do instead
Use a print-oriented PDF preset or the vendor's spec, explicitly set bleed and marks, embed or convert the correct color profile, and preflight the exported PDF before sending.
Exporting web graphics at whatever size the artboard happens to be, producing oversized files and blurry or mis-scaled images.
Candidates export the artboard as-is without planning pixel dimensions or format per use, so assets are too heavy or rendered at the wrong scale for the target display.
What to do instead
Decide target pixel dimensions and format (PNG for transparency, JPEG for photos, SVG for scalable graphics) before export, use Export for Screens with explicit scales, and check file size and sharpness at actual display size.
Saving over the only working file at each stage and having no recoverable version when a client requests a change or a file corrupts.
Candidates treat saving as a single action and do not build versioning into their workflow, so there is no earlier state to return to.
What to do instead
Save incremental versions or use Save As with a dated naming convention, keep the native editable master separate from exports, and archive final deliverables with their source files.