Hello, I reply this old topic but I could not find a solution for a problem. I want to set the padding of the text editor to zero.

textEdit->document()->setDocumentMargin(0);

as @mpergand said this works. However when I try to design application for different platform a problem occurred.
On the mac the text is fit all the width of the texteditor, but in android there is always a small space at the end.

Both text editors' width set to 150, on mac 45 of letter i can fit, on the phone 44i can fit and the small space.

MAC
Screen Shot 2024-06-29 at 12.56.12.png

Android phone A34
mobile.png

I tried all the below , none of them works

part of the code:

QTextDocument *doc = textEdit->document(); doc->setDocumentMargin(0); doc->setIndentWidth(0); textEdit->setContentsMargins(0,0,0,0); // textEdit->set QTextCursor cursor(doc); // Select the entire text cursor.select(QTextCursor::Document); // Create a character format and set the font style QTextCharFormat format; // QFont font("Arial", 12, QFont::Bold); // Example: Arial, 12pt, bold format.setFont(timesFont); // Apply the format to the selected text cursor.mergeCharFormat(format); // Set block format to ensure no extra margins QTextBlockFormat blockFormat; blockFormat.setBottomMargin(0); blockFormat.setTopMargin(0); blockFormat.setLeftMargin(0); blockFormat.setRightMargin(0); cursor.setBlockFormat(blockFormat); textEdit->setTextCursor(cursor);

Why there is a difference ?