There's a bug in Confluence causing images to render with missing data

[Jack Byers]

If you embed an image to a Confluence page, publish the page, and then reload, the image will not always contain everything it should. One this issue occurs, the image never recovers. 

In my case, it's leaving out random parentheses characters or number values.

If you click the image and then download it, the missing characters are still there, indicating that Atlassian probably has some sort of rendering bug for images.

[Davin Studer]

Are you referring to PDF or Microsoft Word files? Images don't have characters in them according to computers. They are just a collection of colored pixels. Could you be referring to rendering the content of a PDF or Word file to the page? If so that would be an issue with how Confluence reads the document. Probably a character encoding issue. These are tough ones and normally there is not a great work around. Confluence does a pretty good job of rendering PDF and Word files, but there are so many possible scenarios that it cannot perfectly render every PDF or Word file.