InDesign has random pixelated images when export to jpeg
I create wedding album layouts using InDesign. Each page layout can be one full image over a spread, or a bunch of images in a montage. There’s around 150-200 images throughout a typical album layout design.
The Pixelated Images Problem
Today I had an infuriating problem where some of the images exported pixelated for no reason.
I was exporting the layout as jpegs at 150dpi for proofing. There are a few common mistakes that can cause pixelated images from InDesign. The main culprits are:
- Low resolution image source file
- or, a missing link to the image source file
Cause of the Problem
I spent a good 2-3 hours trying to find the cause of the problem but eventually had success when I noticed that the scale percentages of the problem images had recurring decimals.
To see this, you need to select the images with the direct selection tool (selecting the image frame will show different values).
In the transform panel, you should see the Scale X Percentage and the Scale Y Percentage. I always have these values locked to constrain proportions, so they are always the same percentage value. If they are a different value, this means your image is squashed or stretched – that’s pretty much never a good thing.
What I noticed is that the problem images had a recurring decimal in their scale percentages.
You just need to resize the problem images so that their scale percentages don’t have a recurring decimal.
The easiest way to do that is just click up once on the little up arrow next to the Scale X or Scale Y Percentage box. This should bump it up to an integer and only slightly change the image size, so it shouldn’t effect your design too much.
Make sure you have constrain proportions locked so that the image keeps it’s aspect ratio when it’s enlarged.