Letters change or disappear when I stop editing a markup.
Why does this happen?
It is usually because the font being used is corrupted.
How do I fix it?
In the process below, you will first test whether the issue is caused by the font or the PDF. The steps you take from there are dependent on the results of your testing. There will be solutions provided for each problem as you progress through the steps.
Set up a test document
- Create a new, blank PDF.
- Insert a text box and type with the same font that caused the issue.
Does the problem recur?
- If it does, the problem is caused by the font installed on your system. See Microsoft’s® support article Checklist for Troubleshooting TrueType Font Problems for more information.
- If not, the problem is caused by the font embedded in the particular PDF.
If the problem is specific to the document, dropping (or removing) the embedded font should resolve the issue:
- Open the affected PDF in Revu.
- Go to Document > Process > Reduce File Size
- Click Edit.
- The Reduce File Size Custom Settings dialog box appears. Uncheck everything in the Images and Miscellaneous tabs. In the Fonts tab, make sure that the Drop Embedded box is checked.
- Click OK.
- The dialog box will close, and you will be taken back to the Reduce File Size dialog box.
- Click OK.
- A Save As dialog box will appear. Give the file a new name, then click Save.
Double-click on the text box to see if the problem is resolved. If the problem recurs, the font may be an embedded subset, which cannot removed from the PDF. In this case, changing the text to a different font should resolve the issue.
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