Category Archives: acrobat

PDFBox setting custom font (how to embed)

I am using Apache PDFBox to read a fillable PDF form and fill the fields based on some data. I am using the below code (as per suggestions from other SO answers) to get the default Appearance String and changing it (as you can see below, I am changing the font size from 10 to 12 if the field name is "Field1".

  1. How do I bold the field? Any documentation on what order the /Helv 10 Tf 0 g are arranged? What I need to set to bold the field?
  2. If I understand right, there are 14 basic fonts that I can use in PDFBox out of the box (pun unintended). I would like to use one or more fonts that look like Signatures (cursive). Any out of the box fonts that do that? If not, if I have my own font, how do I set in the method to be written to the PDF?

Please note, the below code works fine by filling the specific 'value' passed in the method parameter in the specific 'name' field of the method parameter.

Thank you !

    public static void setField(String name, String value ) throws IOException {
    PDDocumentCatalog docCatalog = _pdfDocument.getDocumentCatalog();
    PDAcroForm acroForm = docCatalog.getAcroForm();
    PDField field = acroForm.getField( name );

    COSDictionary dict = ((PDField)field).getDictionary();
    COSString defaultAppearance = (COSString) dict.getDictionaryObject(COSName.DA);
    if (defaultAppearance != null)
        dict.setString(COSName.DA, "/Helv 10 Tf 0 g");
            dict.setString(COSName.DA, "/Helv 12 Tf 0 g");
    if(field instanceof PDTextbox)
        field= new PDTextbox(acroForm, dict);