Changing Font of TextFrame via Extend Script in Python

Question

Hi, I am trying to change the Font of the contents of a TextFrame, however when doing so, Illustrator crashes.I am fairly sure the code is correct, as it correctly replaces the *text* of the TextFrame, just not it's Font.Below is the snippit in question:         # Find and modify the text object
        text_modified = False
        for item in target_layer.PageItems:
            if item.typename == "TextFrame":  # Check if the item is a text object
                # Update the text content
                item.TextRange.Contents = new_text_content
                print(f"Successfully changed Text to '{new_text_content}'")

# Change the font of the text object
                try:
                    # Get the exact font name (ensure this is the correct name from the list)
                    desired_font = app.TextFonts[new_font_name]

# Apply the font to the entire text range
                    item.TextRange.CharacterAttributes.TextFont = desired_font
                    print(f"Font '{new_font_name}' successfully applied!")

except Exception as e:
                    print(f"Font '{new_font_name}' not found or not applicable: {e}")

text_modified = True
                break

new_text_content="Abraham Lincoln",
new_font_name="TimesNewRomanPS-BoldMT",  # Use the full font name as Illustrator recognizes it  I have tried various fonts, and when they are spelled and formatted correctly, IE "VerdanaPro-CondBlack" Illustrator will always crash, however if I mis-spell the font or give an incomplete name, IE "Verdana" the script will fail to find it and continue without crashing. Can anyone suggest how to correctly apply a specified font to a TextFrame? Is there an obvious error I am overlooking?Your time is appreciated.

Tranquil_expert6753 · Accepted Answer

Hi,

Thanks for the suggestion. What I ended up doing was recording Macros within Illustrator itself, and then calling them in my Python Script via ExtendScript, like below:

                extendscript_code = f"""
                (function() {{
                    var doc = app.activeDocument; // Get the active document
                    var textFrame;

                    // Find the TextFrame with the given index
                    if (doc.textFrames.length > {i}) {{
                        textFrame = doc.textFrames[{i}]; // Target the specific TextFrame
                        textFrame.selected = true;      // Select it
                    }} else {{
                        alert("No TextFrame found with index {i}!");
                        return;
                    }}

                    // Trigger the action
                    var actionName = "Change Font to Thunderstorm"; // Replace with your action name
                    var actionSetName = "Font Change";  // Replace with your action set name

                    try {{
                        app.doScript(actionName, actionSetName);
                    }} catch (e) {{
                        alert("Error: " + e.message);
                    }}
                }})();
                """

This has proved to be extremely effective, and has the bonus that I can make sure that all the CharacterAttributes such as kerning, size, etc are matched consistently across all my needs for this script.

Wasn't able to get it working any other way. Hope this helps someone else having a similar issue!

ShantiShaun · Answer

@Tranquil_expert6753 , I don't know if you might need this..textFrame.font = "TimesNewRomanPS-BoldMT";textFrame.size = 12;

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