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Change BaseFont size in ItextPdf

I am using arial font using BaseFont in ItextPdf in my Java app. I am updating the acro fields of an editable pdf and regenerating. It's working all fine.
I am creating it as:
ArrayList<BaseFont> fonts = new ArrayList<BaseFont>();
BaseFont baseFont = BaseFont.createFont("/path/to/arial.ttf",BaseFont.IDENTITY_H,BaseFont.EMBEDDED);
fonts.add(baseFont);
and within my acroform I am attaching that font like this:
acroForm.setSubstitutionFonts(fonts);
How can I change the size of this BaseFont?

Setting substitution fonts in AcroForm itext7

I have a pdf with AcroForm and need to fill it with string that contains different languages glyphs (English, Chinese, Korean, Khmer).
In iText5 I've used:
AcroFields form = stamper.getAcroFields();
form.addSubstitutionFont(arialFont);
form.addSubstitutionFont(khmerFont);
And it worked fine for Chinese and Korean, but I've faced an issue with Khmer ligatures not being rendered. Found out that I need pdfCalligraph addon to make ligatures work, but it comes with iText7 only. I've managed to add paragraphs with proper Khmer ligatures rendering (requiring typography as a dependency and loading a license key). But in AcroForm it won't do it automatically. I'm struggling to find an iText7 version of addSubstitutionFont and make it work with pdfCalligraph.
Code I've used with iText7:
PdfReader reader = new PdfReader(templatePath);
PdfDocument pdf = new PdfDocument(reader, new PdfWriter(outputPath));
Document document = new Document(pdf);
PdfAcroForm form = PdfAcroForm.getAcroForm(pdf, true);
PdfFont khmerFont = PdfFontFactory.createFont(pathToKhmerFont, PdfEncodings.IDENTITY_H, true);
PdfFont font = PdfFontFactory.createFont(pathToArialUnicodeFont, PdfEncodings.IDENTITY_H, true);
pdf.addFont(khmerFont);
pdf.addFont(font);
FontSet set = new FontSet();
set.addFont(pathToKhmerFont);
set.addFont(pathToArialUnicodeFont);
document.setFontProvider(new FontProvider(set));
document.setProperty(Property.FONT, "Arial");
form.setNeedAppearances(true);
String content = "khmer ថ្ងៃឈប់សម្រាក and chinese 假日 and korean 휴일";
PdfFormField tf = form.getField("Text3");
tf.setValue(content);
// tf.setFont(khmerFont);
tf.regenerateField();
// add a paragraph just to check pdfCalligraph works
document.add(new Paragraph(content));
pdf.close();
String used to test proper rendering: "khmer ថ្ងៃឈប់សម្រាក and chinese 假日 and korean 휴일"
iText5 in form field without pdfCalligraph, but with substitution fonts:
iText7 in form field with pdfCalligraph loaded (set arial font field.setFont(arialFont)):
iText7 in form field with pdfCalligraph loaded (set khmer font field.setFont(khmerFont)):
iText7 same document but in a paragraph instead of form field with pdfCalligraph loaded (It is an expected resut, so it does use pdfCalligraph for paragraphs, but not for form fields):
So, as you can see there're basically 2 issues:
How do I addSubstitutionFont in iText7?
How do I use pdfCalligraph in PdfFormField appearance?
I've also checked if pdfCalligraph works in text form and it looks like it does not. Here is a code I've used to check it:
LicenseKey.loadLicenseFile(path_to_license);
String outputPath = path_to_output_doc;
PdfDocument pdf = new PdfDocument(new PdfWriter(outputPath));
Document document = new Document(pdf);
// prepare fonts for pdfCalligraph to use
FontSet set = new FontSet();
set.addFont("/path_to/Khmer.ttf");
set.addFont("/path_to/ArialUnicodeMS.ttf");
FontProvider fontProvider = new FontProvider(set);
document.setFontProvider(fontProvider);
document.setProperty(Property.FONT, "Arial");
String content = "khmer ថ្ងៃឈប់សម្រាក and chinese 假日 and korean 휴일";
// Add a paragraph to check if pdfCalligraph works
document.add(new Paragraph(content));
// Add a form text field
PdfAcroForm form = PdfAcroForm.getAcroForm(pdf, true);
PdfTextFormField field = PdfFormField.createText(pdf, new Rectangle(36, 700, 400, 30), "test");
field.setValue(content);
form.addField(field);
document.close();
Output with pdfCalligraph dependency loaded (as you can see paragraph rendered properly, but in form all non-halvetica chars just ignored:
Output without pdfCalligraph dependency loaded (as you can see paragraph is not rendered properly which is expected, the form field looks same as with loaded pdfCalligraph):
Am I missing something?

Content invisible using Itext in Java

I'm using the iText library with Java and I have an issue, let me explain:
I have a Word file converted into a PDF and i want to add a table at the end of the document, this works perfectly except when the Word file hasn’t active the feature "No Color" at the tab "Page Layout", the table adds it as "invisible".
I've already tried to change the property Font from the Chunk object that created the content, but it does not work, the table continues showing as "invisible".
How I can solve this
The following code is the one that I use to create the table:
Font font = new Font(1,fontSize, Font.BOLD);
font.setColor(0,0,0);
Chunk name = new Chunk(v_emp.getNombre(),font);
Chunk tipo = new Chunk(v_emp.getDireccion(),font);
Paragraph paragraph = new Paragraph();
paragraph.add(tipo);
paragraph.add(new Chunk("\n"));
paragraph.add(name);
PdfPCell cell1 = new PdfPCell(paragraph);
cell1.setPadding(2);
table.addCell(cell1);

Try selecting the table in PDF with your mouse and see if the table is there and still it is invisible.
If it is there, go to the file menu and do print as pdf.

Using a primary and a fallbackfont in Flying Saucer PDF generator

I'm having trouble getting flying saucer to use a secondary font for the glyphs/charachters which are not present in my main font.
The Java code I'm using for this purpose is more or less:
String result = getPrintHtmlContent(urlString);
result = CharacterConverter.replaceInvalidCharacters(result);
ITextRenderer renderer = new ITextRenderer();
renderer.getFontResolver();
renderer.getFontResolver().addFont(FONTS_DIR_PATH + "ARIALUNI.TTF", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
renderer.getFontResolver().addFont(FONTS_DIR_PATH + "droidsans/DroidSans.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
renderer.getFontResolver().addFont(FONTS_DIR_PATH + "droidsans/DroidSansBold.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
renderer.setDocumentFromString(result, "http://" + frontendHost + ":" + frontendPort + frontendContextRoot);
renderer.layout();
renderer.createPDF(os);
And the css:
body {
font-family: "Droid Sans", "Arial Unicode MS";
}
I have also included the fonts in the css by using the #font-face rule.
I am able to get this to work using either of the fonts separately, so there seems to be no problem with flying saucer finding the fonts or the css not rendering correctly.
If I on the other hand do as above and try to use both fonts the output PDF is only using Droid Sans...
Is it even possible to use a "fallback font" in flying saucer, as it is on websites?

I asked the same question on Flying Saucer developer community and got a reply:
https://groups.google.com/forum/#!topic/flying-saucer-dev/5p00ISwnxiw
In short the answer is NO, it is not possible to use a secondary font.

create Unicode pdf file contain Bangla letter using iText in java

I have to generate pdf file using iText in Netbeans IDE. The pdf may contain bangla letter. I already generate pdf file with Bangla letters. But the problem is Bangla letters are not in correct form.
Suppose I have to show: বরিশাল -- But pdf generate: [1]: http://i.stack.imgur.com/abwOV.jpg
Suppose I have to show: পড়ি -- But pdf generate: পড় ি
My code to generate this file:
Document document = new Document();
BaseFont unicode = BaseFont.createFont("c:/windows/fonts/NikoshBan.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
Font font = new Font(unicode);
PdfWriter writer=PdfWriter.getInstance(document, new FileOutputStream("TableDat.pdf"));
document.open();
document.add(new Paragraph("বরিশাল",font));
document.close();