I've run into this issue a number of times and I don't know if I'm doing something wrong or if it's some quirk with InDesign. Anyway, I laid out a 1000 px x 1000 px document in InDesign to upload to a website that has size restrictions. I can't get the site to take it - even though it tells me that the maximum dimensions are 3000 px x 3000 px. I was all set to reach out to the site's help and then it occurred to me that I've had this problem before. So I opened up the same document in Photoshop to check the dimensions and Photoshop is telling me that my document is 4167 px x 4167 px. I don't understand why this is. I set my dimension in InDesign, but then when I export the document as a JPEG and check the size in Photoshop it's never the size I laid it out to be.
Why is this and how can I correct for it?
If it helps, I'm using CS6 and I'm still a novice.
You set up your ID document to work in pixels, right? OK.
When exporting, set the export resolution to 72 ppi and the exported file in Photoshop will have a matching pixel dimension (in ID a pixel equals 1/72"). Alternatively, export a PDF and open that PDF in Photoshop at 72 ppi.
Yes - I've been setting the ID doc up with pixels as my sizing and scale. I have however been exporting to JPEGS with 300 DPI. Is that where I'm picking up the extra pixels?
Awesome, that seemed to work. Thanks guys!