[jira] [Created] (PDFBOX-3812) Auto size font not respected in the multiline PDTextField

["Marek Zajac (JIRA)" <ji...@apache.org>]

Marek Zajac created PDFBOX-3812:
-----------------------------------

             Summary: Auto size font not respected in the multiline PDTextField 
                 Key: PDFBOX-3812
                 URL: https://issues.apache.org/jira/browse/PDFBOX-3812
             Project: PDFBox
          Issue Type: Bug
          Components: AcroForm
    Affects Versions: 2.0.6
         Environment: Windows 7 and Mac OSX, Java 1.8.0_121
            Reporter: Marek Zajac
         Attachments: TestPDF_gen_flatten.pdf, TestPDF_gen.pdf, TestPDF.pdf

Hello, I ve got a simple pdf file "TestPDF.pdf" with just one text field named "Text1". It is set up as auto size and multiline field. 

My code :
	{code:title=Bar.java|borderStyle=solid}
	File fileTemplate = new File("/Users/xxx/Downloads/TestPDF.pdf");
		PDDocument doc = null;
		try {
			doc = PDDocument.load(fileTemplate);
		} catch (IOException e) {
			e.printStackTrace();
		}
		PDDocumentCatalog catalog = doc.getDocumentCatalog();
		PDAcroForm form = catalog.getAcroForm();
		PDTextField field = (PDTextField)form.getField("Text1");
//		field.setDefaultAppearance("/Helv 0 Tf 1 0 0 rg")

		String longText = "THIS IS A VERY VERY LONG TEXT IN A MULTINLINE TEXT FIELD " 
				+ "THIS CAN BE REALY LONG TEXT FIELD CONTAINING A FULL ADDRESS OF THE CUSTOMER"
				+ "WE WANT TO HAVE AN AUTO SIZED FIELD WITH DYNAMICALY CHANGED FONT SIZE. TO TEST IT OUT WE" + "NEED AT THE END 123";
		try {
			field.setValue(longText);
//			form.flatten();
			doc.save("/Users/xxx/TestPDF_generated.pdf");
			doc.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	{code}
	
Please open the attached "TestPDF_gen.pdf" file in the Adobe Acrobat. It shows the text cut off at the end. However if you click inside the field it sudenly renders text properly. 

Other remarks :
1. If you open the "TestPDF_gen.pdf" file in the Preview (Mac OSX default pdf viewer) then the Text1 shows text properly auto sized. 
2. If you do flat the form by uncommenting form.flatten(). Then the Text1 is cut off at the end of the text and font size is not auto. I ve tried both Adobe Acrobat and Preview. See the "TestPDF_gen_flatten.pdf" 
3. I ve also tried calling setDefaultAppearance method before setting the field's value - field.setDefaultAppearance("/Helv 0 Tf 1 0 0 rg") but it did not help.



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