Problem with script

"Now I need to know how to extend this script (modifyng the properties included the paragraph style) to ALL paragraph styles my indd includes."

Hi @davidr40577873 ,

the scope of item("Name") or itemByName("Name") when it comes to paragraph styles, character styles, table styles or cell styles is not as perfect as it might seem from your perspective. It does not reach into style groups! Also note that you cannot change the first paragraph style in the collection of paragraph styles, the "No Paragraph Style" style.

You'll reach all paragraph styles with the document's allParagraphStyles array and loop that beginning with the second item in the array:

// ExtendScript (JavaScript) SAMPLE CODE:

var allParaStylesOfDoc = app.documents[0].allParagraphStyles;
var allParaStylesOfDocLength = allParaStylesOfDoc.length;

for( var n=1; n<allParaStylesOfDocLength; n++ )
{
	allParaStylesOfDo[n].justification = Justification.LEFT_ALIGN;
};

Warning: For various reasons discussed elsewhere in this forum it is good practice not to change the Basic Paragraph style of a document. So you would start the loop of paragraph styles with iterator number 2 instead. The Basic Paragraph Style is always the second one in the allParagraphStyles array of a document:

var n=2;

Regards,
Uwe Laubender
( Adobe Community Expert )

To complete Manan's answer, documents is a collection, i.e. a pseudo array of documents. When you call paragraphStyles property on this collection, it fails because paragraphStyles is actually a property of the Document object which is an instance of the Documents collection.

Hence Manan's answer, use the property on the specific instance through either : 

…documents.item(n).paragrapStyles… or documents.item("myDoc.indd").paragrapStyles…;

…documents[n].paragrapStyles…

…documents.itemByName("myDoc.indd").paragrapStyles…

…documents.itemByID(12345).paragrapStyles…

all those properties details can be found here:

https://www.indesignjs.de/extendscriptAPI/indesign-latest/#Documents.html#d1e55773

HTH

Loic

var style=app.documents.paragraphStyles.item("texto justificado");

should be

var style=app.documents[i].paragraphStyles.item("texto justificado");

-Manan