Remove Trailing Whitespace without removing extra lines

Why would anyone wants trailing lines or paragraphs if correct paragraph styles are used?

@Shanpub said: "…this is perfect for what I want to implement but the problem is when I'm adding this in script my InDesign crash"

If a GREP expression like

"\\h+(?!\\n)$"

is crashing InDesign, it could be a bug in a specific version of InDesign or a strange condition in your document you are running the code at. To test this just run your code to this point:

var doc = app.activeDocument;
app.findGrepPreferences = app.changeGrepPreferences = NothingEnum.nothing;
app.findGrepPreferences.findWhat = "\\h+(?!\\n)$";
app.changeGrepPreferences.changeTo = "";

Then open the GUI for GREP Find/Change and check if you see the right expression in the GUI.

Test if the GUI can handle the Find/Change action on the active document.

If all goes well with that, return to your code and run it not on the document, but on a selection of text.

If InDesign will crash then, just provide a sample document where you see the issue. Simply attach the document to your reply post.

Thanks,
Uwe Laubender
( Adobe Community Expert )

I'm not sure why the reply didn't get posted here, but I got an email answer that worked:

[[:space:]]*?(?=\r)

I shortened that to the following, which also is working for me:

\s*?(?=\r)

What if simply exclude carriage return?

\s+[^\r]$

Hi,

Does this link help? it has several grep expressions that can be used.

https://www.rockymountaintraining.com/adobe-indesign-removing-unwanted-spaces-fast/