How to add an outline to a graphic for a blog series

A graphic can look finished at full size but lose its shape when it appears as a small blog thumbnail. A simple outline can help separate the main subject from the background and make several images in a series feel consistent.

You can draw the outline on its own layer in the Photo Editor. That makes it easier to adjust the color or redraw the edge without painting over the original artwork.

Add an outline to your graphic

1. Open the Photo Editor and open the graphic you want to edit. If you plan to outline a person, object, or logo rather than the whole image, check whether the area around it is transparent. A solid background will prevent an outline layer underneath the image from showing through.
2. Create a separate layer for the outline and place it behind the artwork. Keep the original graphic above it. This protects the source image and lets its edges cover the inside half of your brush strokes.
3. Choose the brush and set a color that contrasts with both the subject and the background. Start with a medium-width brush. For a graphic about 1,200 pixels wide, try a stroke around 4 to 8 pixels, then adjust it after checking the image at a smaller size.
4. Trace around the outside edge of the subject on the outline layer. Follow the shape slowly, keeping the brush at a steady size and staying close to the edge. For a curved shape, use shorter strokes rather than trying to draw one long, uneven line.
5. Zoom out to the size people will see in the blog. If the outline is too thin to notice, make it thicker. If it overwhelms small details, reduce the brush width or use a less forceful color. Export a copy when the shape looks clear at both full size and thumbnail size.

If the graphic has a solid background and you only want to outline one object, first isolate that object using the editor's selection tools if the image allows it. Then place the outline layer beneath the isolated artwork. If you cannot separate the object cleanly, consider outlining the complete graphic instead of drawing a border that disappears against its background.

Choose the kind of outline you need

Outline the main subject

Trace just the person, object, or logo that readers should notice first. This works best when the subject is separate from its background, or when you can isolate it with a selection. Keep the line close to the silhouette, the outer shape of the subject. A stray gap can make the outline look like a separate mark rather than part of the image.

Outline the whole graphic

If the image is a complete rectangle, a border around its outside edge can make it stand apart from a white blog page. This is different from outlining the subject itself: the border follows the image canvas, not every detail inside it. Keep the corners and line weight consistent with other graphics in the series.

Pick a color that fits the series

Use the same outline color across related graphics when you want them to feel like a set. A dark neutral often works on a light subject, while a light outline may be easier to see against a dark background. Check the color against every important area behind the line. An outline that disappears along one side may need a different color or a simpler background.

Decide how bold the edge should be

A thin outline keeps attention on the artwork. A thicker outline creates a stronger, more playful look, but it can close up narrow spaces and cover small details. Judge the line at the image's intended display size, not just while zoomed in. If the graphic will appear at several sizes, check the smallest one too.

Fix common outline problems

1. The outline is hidden. Check that the outline layer sits behind the artwork, not beneath an opaque background layer. If the background is part of the image, it may cover the outline. Isolate the subject with a selection if possible, or use a border around the entire graphic instead.
2. The line looks wobbly. Undo the rough section and redraw it with shorter brush strokes. Zoom in enough to follow the edge, but zoom back out often so you do not make the line too thick by mistake. A steady mouse or stylus movement helps more than rushing.
3. The outline covers details. Reduce the brush size, especially around narrow spaces, hair, small text, or thin logo parts. If the detail cannot support a visible outline, leave that section lighter or simplify the graphic for thumbnail use.
4. The outline blends into the background. Try a color with stronger contrast against the background as well as the subject. If no single color works around the whole shape, use a simpler background or a consistent outline color that is visible on the least clear section.
5. The result has a box around it. The image may have an opaque background, so the outline layer is following the rectangle rather than the subject. Use a selection to separate the subject if practical. Otherwise, make the rectangular border intentional and keep it consistent with the other images in the series.
6. The outline looks jagged at small sizes. Inspect it at the final display size before changing individual pixels. A line that looks uneven when enlarged may appear smooth when reduced. If it still looks rough in the thumbnail, redraw the most visible curves with fewer, cleaner strokes.

Keep the series consistent

Before outlining the rest of the blog graphics, settle on a repeatable style: the outline color, approximate width, and whether you are outlining the subject or the whole image. Use those choices for each graphic, then adjust only where the subject shape or background requires it.

Save an editable version with the outline on its own layer if you may need revisions. When exporting for a web page, use PNG if you need to preserve transparent areas around the graphic. JPG does not preserve transparency, so it can add a solid background. Your image stays on your device while you edit it in the browser.