The five photo edits a cover usually needs
A photograph chosen for a cover almost never arrives ready. What it needs is not a long session in an editing app but five specific changes, most of them small, done in a fixed order. Authors who are not designers tend to do them backwards — a filter first, a crop last — and backwards is what makes a picture look handled rather than finished.
1. Crop, and decide what the picture is of
Every other edit gets easier once the frame is right, which is why this one goes first.
Most stock photographs are framed for general use: a subject near the middle, plenty of room around it, nothing committed. That framing is useful to the library, which has to sell the same file to a hundred buyers, and useless to you. A cover has one job at the size of a postage stamp, so the image has to be of one thing.
Crop much tighter than feels comfortable. Cut the second point of interest. Cut the pretty but irrelevant foreground. If the picture is a woman on a cliff, decide whether the book is about the woman or the cliff, and demote the other one.
Leave room for type while you are doing it. A crop that works as a photograph and has nowhere to put a title is a crop you will undo. Composition and negative space covers where that room should sit.
2. Exposure and contrast — lift, do not crush
Printed covers read darker than screens do, so the safe direction is up. Open the shadows a little rather than deepening them for drama. Detail you can only just make out on a bright monitor is detail the press will not hand back. Why your cover prints darker than it looked explains why.
Contrast is where the subject earns its separation, and there is only one test that counts: shrink the image to about the size of a store listing thumbnail and see whether the subject still detaches from its background. If the figure merges into the trees at that size, no amount of type will rescue it. Go back to the exposure, or back to the crop.
Be wary of a single "contrast" slider. It usually darkens the shadows and brightens the highlights at once, which is precisely the two ends of the range that print worst.
3. Color and temperature — a small shift, not a new palette
A photograph and a block of type look like two separate projects until something ties them together. Usually that something is a small, consistent shift in temperature: the whole image nudged warmer or cooler so it lives in the same world as your title color. Small is the word. If you can watch it happen, it is too much.
Desaturating slightly is one of the most reliable ways to stop a stock photograph looking like a stock photograph. Library images are often delivered punchy, because punchy sells thumbnails on the library's own site. Take some of that out and the picture reads as chosen rather than bought. See Color, and what each genre expects of it for where to land.
4. Cleanup — remove the thing a reader will catch
Readers do not study covers, but they notice wrongness. This pass hunts anything that pulls attention out of the picture.
- The distracting object. A sign, a bright scrap of litter, a parked car at the edge of a landscape.
- The stray hand or limb belonging to a person you cropped out of the frame.
- The anachronism. Power lines behind a Regency house, a wristwatch in a Roman scene, a zipper on a medieval coat. Historical readers catch these, and historical readers write reviews.
- Sensor dust and compression speckle in flat areas of sky, which get much louder the moment you raise contrast.
Check every repair at 100 percent. A heal that is invisible at fit-to-window can be a visible smear once the file is 1,838 pixels across.
In the Cover Maker. Drop your edited photograph in and it checks the cover at thumbnail size, so you can see whether the subject still separates before you commit, and it flags art under 200 DPI as too soft to print. Start your cover → · about the Cover Maker
5. Grain, texture or a subtle vignette
The last pass unifies the surface. A composite built from three sources carries three different amounts of noise and three kinds of sharpness, and the eye reads that as assembled even when it cannot say why. One light layer of grain across the whole canvas makes the parts belong to a single photograph.
A gentle vignette does the same job for attention: a slight darkening at the corners holds the eye in the middle. Both are cheap and both are easy to overdo. The test is whether a reader would say the cover has texture, or would say nothing at all. Nothing at all is the goal. Texture, grain and why flat covers look flat goes further.
What not to do
Heavy filters. A strong preset dates a cover to the season the preset was fashionable, and it dates it to everyone except you.
Extreme sharpening. Sharpening works by adding contrast along edges. Push it and each edge gains a pale fringe, which paper renders as a crunchy outline that looks like a printing fault.
Anything after you have scaled down. Sharpening, grain and heavy retouching applied to a reduced file are baked in at the wrong scale and enlarge badly.
The order is the point
Crop before color, because color decisions depend on what is left in the frame. Color before texture, because grain over a color shift looks like grain and a color shift over grain looks like a stain. Never sharpen before resizing.
Work at full resolution throughout and scale last. If the file cannot reach the size it needs — 1,838 × 2,775 pixels for a 6 × 9 front panel with bleed — editing is not the fix. Resolution: why a good-looking image prints badly deals with that.
Make your cover
The Cover Maker is free to use: name your book, bring your artwork, and it draws the full wrap — front, spine and back — to your printer's own measurements. You only pay when you want the files without the preview watermark.
Next: Vector and raster, and why it matters for a cover · More: Stock images: what the license actually lets you do · Texture, grain and why flat covers look flat · The thumbnail test