eBook Formatting Tip: Resize Your Images

eBook Formatting

Updated June 2017.

If you want your eBook to display content in an attractive way across all the eReaders, there are a few simple tips you’ll want to follow before your file is converted into the ePUB format.

Today’s tip: Resize your images outside of the Word doc before you insert them. Many people drag an image from their desktop into the Word document FIRST and then adjust the size (using the little square scrollers that appear in the corners when you click on the image). But here’s the catch: adjusting the size of the image in Word only changes how it APPEARS. As far as the document is concerned, the image is still the original size. So if you dragged a giant .jpg into Word and then adjusted the size, when the Word doc is converted to ePUB and displayed on an iPhone or Nook, it will display in its original size and cause all kinds of annoying formatting issues for your reading device.

To avoid this formatting issue, adjust the size of the image first! Then move it into the Word doc. Once you’ve moved the resized image into Word, it cannot be enlarged beyond the actual size. You can make it appear smaller, but not bigger. This allows you to get a feel for how the image at its actual size will display in relation to the text.

Here’s a helpful hint from our ePUB conversion guidelines:
Resize large images to 300 pixels high if you would like them to display in-line with text. Do all image resizing outside of the document, then reinsert them before saving. All images should be 72 – 300 DPI (300 DPI preferred).*

  • Cover image: At least 1400px wide, portrait or vertical rectangle-shaped artwork (no squares) and we recommend a height/width ratio of 1.5 (1400px wide x 2100px high)
  • Full-page images: minimum of 150dpi/ppi, which equals a resolution of 1275px wide x 1650px high on a letter sized page
  • Logos or simple images: 75 – 100 pixels high
  • Don’t worry too much about the exact size of images within your document. The best approach is to size it how you want it to appear in relation to the text.

Learn more at our eBook conversion FAQ page.

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  2. So is 590 pixels wide by 750 pixels the size my Word Document should be to send to BookBaby to get formatted correctly?

      • Chris, I don’t understand. Your article says cover and full page images should be 590 x 750, but your answer above says it must be 550 x 800. Which is correct? Thanks!

        • To clarify, the resolution of all of your images should be a recommended 300 DPI, and your eBook cover and full page images should be 590 pixels wide by 750 pixels high. Sorry if there was confusion from Chris’s comment.

          • Over here: http://www.bookbaby.com/ebook-graphics/
            it says images need to be used larger if they are clearly pixelated.
            When I size my scanned drawing to 590×750, they are clearly pixelated on screen (also no way would they be 300 DPI full screen on an ipad)… ? what gives with the contradictory info? Also, last year when I did something in KDP, it asked for a much larger size for cover images than 590×750. Drawings are around 6×8″, so why would I not submit 1800×2400 images and let the ereader handle the scaling?


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