Zoom

From CeltxWiki

The Script Editor can be zoomed to either 100% or 150% by selecting the appropriate value from the dropdown control on the Script Editor Toolbar.

Linux and Windows users can obtain other levels of zoom by holding down Ctrl while spinning the mouse scrollwheel. These zoom settings are not intentionally provided, and are not available from the dropdown on the toolbar.

Tinkering under the hood

If you're not scared, you can alter the way Celtx does zoomed text. Instructions for Windows (Linux and Max with have different paths to the celtx.jar file) Letter paper are as follows:

Using something that can look inside .jar files, like 7-zip, open:

C:\Program Files\Celtx\chrome\celtx.jar\content\celtx\style\film\USLetter\Large.css

Find

@media screen {
  body {
    font-size: 12pt;

And change the font size. Save the .jar and restart Celtx. This should only affect large format editing.