Image size increases when the page is exported in the PDF format

Issue Summary

Image size increases when the page is exported in the PDF format

Steps to Reproduce

1. Create a page
2. Add an image to the page (let it remain in its original size)
3. Publish the page
4. Export the page as a PDF file

Expected Results

The size of the image should be its original size.

Actual Results

Size of the image increases.

Workaround

If the images are centrally aligned:
Resize the image.

If the images are left-aligned:
1. Centre the image
2. Increase the size
3. Left align the image
4. Publish the page

Alternatively, add space before and after each enlarged image.