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No glyph found after getting Text and Font from existing pdf

My goal is to transfer textual content from a PDF to a new PDF while preserving the formatting of the font. (e.g. Bold, Italic, underlined..).
I try to use the TextPosition List from the existing PDF and write a new PDF from it.
For this I get from the TextPosition List the Font and FontSize of the current entry and set them in a contentStream to write the upcoming text through contentStream.showText().
after 137 successful loops this error follows:
Exception in thread "main" java.lang.IllegalArgumentException: No glyph for U+00AD in font VVHOEY+FrutigerLT-BoldCn
at org.apache.pdfbox.pdmodel.font.PDType1CFont.encode(PDType1CFont.java:357)
at org.apache.pdfbox.pdmodel.font.PDFont.encode(PDFont.java:333)
at org.apache.pdfbox.pdmodel.PDPageContentStream.showTextInternal(PDPageContentStream.java:514)
at org.apache.pdfbox.pdmodel.PDPageContentStream.showText(PDPageContentStream.java:476)
at haupt.PageTest.printPdf(PageTest.java:294)
at haupt.MyTestPDF.main(MyTestPDF.java:54)
This is my code up to this step:
public void printPdf() throws IOException {
TextPosition tpInfo = null;
String pdfFileInText = null;
int charIDindex = 0;
int pageIndex = 0;
try (PDDocument pdfDocument = PDDocument.load(new File(srcFile))) {
if (!pdfDocument.isEncrypted()) {
MyPdfTextStripper myStripper = new MyPdfTextStripper();
var articlesByPage = myStripper.getCharactersByArticleByPage(pdfDocument);
createDirectory();
String newFileString = (srcErledigt + "Test.pdf");
File input = new File(newFileString);
input.createNewFile();
PDDocument document = new PDDocument();
// For Pages
for (Iterator<List<List<TextPosition>>> pageIterator = articlesByPage.iterator(); pageIterator.hasNext();) {
List<List<TextPosition>> pageList = pageIterator.next();
PDPage newPage = new PDPage();
document.addPage(newPage);
PDPageContentStream contentStream = new PDPageContentStream(document, newPage);
contentStream.beginText();
pageIndex++;
// For Articles
for (Iterator<List<TextPosition>> articleIterator = pageList.iterator(); articleIterator.hasNext();) {
List<TextPosition> articleList = articleIterator.next();
// For Text
for (Iterator<TextPosition> tpIterator = articleList.iterator(); tpIterator.hasNext();) {
tpCharID = charIDindex;
tpInfo = tpIterator.next();
System.out.println(tpCharID + ". charID: " + tpInfo);
PDFont tpFont = tpInfo.getFont();
float tpFontSize = tpInfo.getFontSize();
pdfFileInText = tpInfo.toString();
contentStream.setFont(tpFont, tpFontSize);
contentStream.newLineAtOffset(50, 700);
contentStream.showText(pdfFileInText);
charIDindex++;
}
}
contentStream.endText();
contentStream.close();
}
} else {
System.out.println("pdf Encrypted");
}
}
}
MyPdfTextStripper:
public class MyPdfTextStripper extends PDFTextStripper {
public MyPdfTextStripper() throws IOException {
super();
setSortByPosition(true);
}
#Override
public List<List<TextPosition>> getCharactersByArticle() {
return super.getCharactersByArticle();
}
// Add Pages to CharactersByArticle List
public List<List<List<TextPosition>>> getCharactersByArticleByPage(PDDocument doc) throws IOException {
final int maxPageNr = doc.getNumberOfPages();
List<List<List<TextPosition>>> byPageList = new ArrayList<>(maxPageNr);
for (int pageNr = 1; pageNr <= maxPageNr; pageNr++) {
setStartPage(pageNr);
setEndPage(pageNr);
getText(doc);
byPageList.add(List.copyOf(getCharactersByArticle()));
}
return byPageList;
}
Additional Info:
There are seven fonts in my document, all of which are set as subsets.
I need to write the Text given with the corresponding Font given.
All glyphs that should be written already exist in the original document, where I get my TextPositionList from.
All fonts are subtype 1 or 0
There is no AcroForm defined
Thanks in advance
Edit 30.08.2022:
Fixed the Issue by manually replacing this particular Unicode with a placeholder for the String before trying to write it.
Now I ran into this open ToDo:
org.apache.pdfbox.pdmodel.font.PDCIDFontType0.encode(int)
#Override
public byte[] encode(int unicode)
{
// todo: we can use a known character collection CMap for a CIDFont
// and an Encoding for Type 1-equivalent
throw new UnsupportedOperationException();
}
Anyone got any suggestions or Workarounds for this?
Edit 01.09.2022
I tried to replace occurrences of that Font with an alternative Font from the source file, but this opens another problem where a COSStream is "randomly" closed, which results in the new document not being able to save the File after writing my text with a contentStream.
Using standard Fonts like PDType1Font.HELVETICA instead works though..

How to use TTF font with PDFBox AcroForm and then flatten document?

I have been trying to make a fillable PDF file with LibreOffice Writer 7.2.2.2. Here is how the document looks like:
All fields right of the vertical lines are form textboxes, each one having its own name(tbxOrderId, tbxFullName...). Each textbox uses SF Pro Text Light as font. Only the one on the bottom right(tbxTotal) - Total €123.00 has Oswald Regular. The document looks alright when I fill these fields with LibreOffice Writer.
Below this are my export settings. I chose Archive PDF A-2b in order to embed the fonts into the document.
Here is the output when I run pdffonts to the exported PDF file.
However, when I run the following code which just changes the values of tbxOrderId and tbxTotal, the output PDF document is missing these fonts.
public class Start {
public static void main(String[] args) {
try {
PDDocument pDDocument = PDDocument.load(new File("/media/stoyank/Elements/Java/tmp/Receipt.pdf"));
PDAcroForm pDAcroForm = pDDocument.getDocumentCatalog().getAcroForm();
PDField field = pDAcroForm.getField("tbxOrderId");
field.setValue("192753");
field = pDAcroForm.getField("tbxTotal");
field.setValue("Total: €192.00");
pDAcroForm.flatten();
pDDocument.save("/media/stoyank/Elements/Java/tmp/output.pdf");
pDDocument.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
This is how the output document looks like:
I tried to add the font manually by referring to this Stackoverflow question, but still no success:
PDDocument pDDocument = PDDocument.load(new File("/media/stoyank/Elements/Java/tmp/Receipt.pdf"));
PDAcroForm pDAcroForm = pDDocument.getDocumentCatalog().getAcroForm();
InputStream font_file = ClassLoader.getSystemResourceAsStream("Oswald-Regular.ttf");
PDType0Font font = PDType0Font.load(pDDocument, font_file, false);
if (font_file != null) font_file.close();
PDResources resources = pDAcroForm.getDefaultResources();
if (resources == null) resources = new PDResources();
resources.put(COSName.getPDFName("Oswald-Regular"), font);
pDAcroForm.setDefaultResources(resources);
pDAcroForm.refreshAppearances();
PDField field = pDAcroForm.getField("tbxOrderId");
field.setValue("192753");
field = pDAcroForm.getField("tbxTotal");
field.setValue("Total: €192.00");
pDAcroForm.flatten();
pDDocument.save("/media/stoyank/Elements/Java/tmp/output.pdf");
pDDocument.close();
After I write into these textbox fields, I want to flatten the document.
Here is my folder structure:
System: Ubuntu 20.04
Also, here is a link to the ODT file that I then export to a PDF and the exported PDF.

Your file doesn't have correct appearance streams for the fields, this is a bug from the software that created the PDF. Call pDAcroForm.refreshAppearances(); as early as possible.
The code in pastebin is fine (it is based on CreateSimpleFormWithEmbeddedFont.java example), except that you should keep the default resources and not start with empty resources. So your code should look like this:
pDAcroForm.refreshAppearances();
PDType0Font formFont = PDType0Font.load(pDDocument, ...input stream..., false);
PDResources resources = pDAcroForm.getDefaultResources();
if (resources == null)
{
resources = new PDResources();
pDAcroForm.setDefaultResources(resources);
}
final String fontName = resources.add(formFont).getName();
// Acrobat sets the font size on the form level to be
// auto sized as default. This is done by setting the font size to '0'
String defaultAppearanceString = "/" + fontName + " 0 Tf 0 g";
PDTextField field = (PDTextField) (pDAcroForm.getField("tbxTotal"));
field.setDefaultAppearance(defaultAppearanceString);
field.setValue("Total: €192.00");

PdfBox - change font or fontName in pdf file?

please tell me.
I have a pdf files with fonts HPDFAA+Arial-BoldMTBold. This font name incorrect and it's a subset...
I change fonts with library Asponse.pdf.dll, https://docs.aspose.com/pdf/net/replace-text-in-pdf/, paragraph - Replace fonts in existing PDF file, but this library trail version.
How can i do this with PDFBox? I want to replace this font on Arial-BoldMT or rename font name.
UPD: my attempts have led nowhere...In PDFontDescriptor i can rename font, but how i can apply for PDFont? Or i'm going the wrong way?
PDDocument pdfDocument = PDDocument.load(new File("Sample.pdf"));
PDPageTree pages = pdfDocument.getDocumentCatalog().getPages();
for (PDPage page : pages) {
PDResources res = page.getResources();
for (COSName fontName : res.getFontNames()) {
PDFont font = res.getFont(fontName);
PDFontDescriptor fontDescriptor = font.getFontDescriptor();
System.out.println("fontDes: " + fontDescriptor.getFontName());
String oldFontName = fontDescriptor.getFontName();
String newFontName = oldFontName.replace("Arial-BoldMTBold", "Arial-BoldMT");
fontDescriptor.setFontName(newFontName);
System.out.println("font: " + font.getName());
}

Here's code that is tailored to your file. It will only help you if this is about many similar files.
try (PDDocument doc = PDDocument.load(new File(XXX,"outerBox.pdf")))
{
PDPage page = doc.getPage(0);
for (COSName name : page.getResources().getFontNames())
{
PDFont font = page.getResources().getFont(name);
String fontName = font.getName();
if (font instanceof PDType0Font && fontName.endsWith("BoldMTBold"))
{
PDType0Font type0font = (PDType0Font) font;
String newFontName = fontName.substring(0, fontName.length() - 4);
type0font.getCOSObject().setString(COSName.BASE_FONT, newFontName);
PDCIDFont descendantFont = type0font.getDescendantFont();
descendantFont.getCOSObject().setString(COSName.BASE_FONT, newFontName);
PDFontDescriptor fontDescriptor = descendantFont.getFontDescriptor();
fontDescriptor.setFontName(newFontName);
}
}
doc.save(new File(XXX,"outerBox-saved.pdf"));
}
PDF structure, seen with PDFDebugger:

Unable to save Arabic words in a PDF - PDFBox Java

Trying to save Arabic words in an editable PDF. It works all fine with English ones but when I use Arabic words, I am getting this exception:
java.lang.IllegalArgumentException:
U+0627 is not available in this font Helvetica encoding: WinAnsiEncoding
Here is how I generated PDF:
public static void main(String[] args) throws IOException
{
String formTemplate = "myFormPdf.pdf";
try (PDDocument pdfDocument = PDDocument.load(new File(formTemplate)))
{
PDAcroForm acroForm = pdfDocument.getDocumentCatalog().getAcroForm();
if (acroForm != null)
{
PDTextField field = (PDTextField) acroForm.getField( "sampleField" );
field.setValue("جملة");
}
pdfDocument.save("updatedPdf.pdf");
}
}

That's how I made it work, I hope it would help others. Just use the font that is supported by the language that you want to use in the PDF.
public static void main(String[] args) throws IOException
{
String formTemplate = "myFormPdf.pdf";
try (PDDocument pdfDocument = PDDocument.load(new File(formTemplate)))
{
PDAcroForm acroForm = pdfDocument.getDocumentCatalog().getAcroForm();
// you can read ttf from resources as well, this is just for testing
PDFont font = PDType0Font.load(pdfDocument,new File("/path/to/font.ttf"));
String fontName = acroForm.getDefaultResources().add(pdfont).getName();
if (acroForm != null)
{
PDTextField field = (PDTextField) acroForm.getField( "sampleField" );
field.setDefaultAppearance("/"+fontName +" 0 Tf 0 g");
field.setValue("جملة");
}
pdfDocument.save("updatedPdf.pdf");
}
}
Edited: Adding the comment of mkl
The font name and the font size are parameters of the Tf instruction, and the gray value 0 for black is the parameter for the g instruction. Parameters and instruction names must be appropriately separated.

You need a font which supports those Arabic symbols.
Once you've got a compatible font, you can load it using PDType0Font
final PDFont font = PDType0Font.load(...);
A Type 0 font is a font which references multiple other fonts' formats, and can, potentially, load all available symbols.
See also the Cookbook - working with fonts (no examples with Type 0, but still useful).

How to display arabic characters in pdf file generated using PDFBox

I'm trying to display an arabic string in a pdf file generated using PDFBox, Actually i can display an arabic string from RTL using ICU4J and a specific font but the problem is this :
even if the string appear correctly from RTL the characters still separated and even if i try some fonts the problem is not solved yet.
Here is a snippet of code used for test:
PDDocument document = new PDDocument();
PDPage page = new PDPage(PDRectangle.A4);
document.addPage(page);
String dir = "resources/fonts/";
//I've used several fonts
PDType0Font farialUni = PDType0Font.load(document, new File(dir + "ARIALUNI.ttf"));
PDFont fArabType = PDType0Font.load(document, new File(dir + "arabtype.ttf"));
PDFont fMuka = PDType0Font.load(document, new File(dir + "Mukadimah.ttf"));
PDFont fFreeSans = PDType0Font.load(document, new File(dir + "FreeSans.ttf"));
PDFont fNoto = PDType0Font.load(document, new File(dir + "NotoNaskhArabic-Regular.ttf"));
PDPageContentStream stream = new PDPageContentStream(document, page);
stream.beginText();
stream.setFont(fNoto, 12);
stream.setLeading(12 * 1.2);
stream.newLineAtOffset(100, 800);
//Switch text order from to RTL
BiDiClass bidiClass = new BiDiClass();
String arabicText = "\u0627\u0644\u0633\u0644\u0627\u0645 \u0639\u0644\u064A\u0643\u0645 ";
//Use icu to inverse the order
String out = bidiClass.makeLineLogicalOrder(arabicText, true);
System.out.println(out);
stream.showText(out);
stream.newLine();
// ligature
stream.showText(out);
stream.endText();
stream.close();
document.save("example.pdf");
document.close();
The resulting string that this code give me is like this :
‫ال س ل ام‪ ‬ع ل ي ك م‪ ‬‬
Note: i add the space character in the resulting string only for clarity.