PDFBOX : U+000A ('controlLF') is not avail

问题:

When trying to print a PDF page using Java and the org.apache.pdfbox library, I get this error:

PDFBOX : U+000A ('controlLF') is not available in this font Helvetica encoding: WinAnsiEncoding

回答1:

[PROBLEM] The String you are trying to display contains a newline character.

[SOLUTION] Replace the String with a new one and remove the newline:

text = text.replace("\n", "").replace("\r", "");

回答2:

The answer selected for this post works, replacing all instances of \n and \r from your string, if you know that it's a \n or \r character that's causing your problem. I've discovered that there are lots of different characters that will produce this error. Here's a sampling of those that I've found:

U+2010 ('hyphentwo') is not available in this font Helvetica encoding: WinAnsiEncoding
U+2033 ('second') is not available in this font Helvetica encoding: WinAnsiEncoding
U+00A0 ('nbspace') is not available in this font Helvetica encoding: WinAnsiEncoding
U+FFFD ('.notdef') is not available in this font Helvetica encoding: WinAnsiEncoding
U+03BC ('mugreek') is not available in this font Helvetica encoding: WinAnsiEncoding
U+039C ('Mu') is not available in this font Helvetica encoding: WinAnsiEncoding
U+2212 ('minus') is not available in this font Helvetica encoding: WinAnsiEncoding
U+0141 ('Lslash') is not available in this font Helvetica encoding: WinAnsiEncoding
U+2103 ('centigrade') is not available in this font Helvetica encoding: WinAnsiEncoding
U+25AA ('H18543') is not available in this font Helvetica encoding: WinAnsiEncoding

In my case, I've simply chosen to remove any special character that's not included in my font. I used the solution from this page:

https://cmsdk.com/java/remove-illegal-characters-from-string-with-pdfbox.html

回答3:

If you'd like to retain the newline addition, i.e you indeed want your text to split and appear the later part in new line, then you can simply replace the \n with an HTML break tag, like below below .

return text.replace("\n","<br>");

:)

回答4:

if you are trying to set a new line using "\n" in a string . you can try PDPageContentStream.newLineAtOffset(x,y) to add a new line

  PDFont font =  PDType1Font.HELVETICA ; 

  PDDocument doc    = new PDDocument();
  PDPage page = new PDPage();
  PDPageContentStream content = new PDPageContentStream(doc, page);
  content.beginText();
  content.moveTextPositionByAmount(10, 700);
  content.setFont(font, 12);
  content.drawString("start text   ");
  content.newLineAtOffset(0, -15);
  content.drawString("text in new line  ");        
  content.endText();
  content.close();
  doc.addPage(page);
  doc.save("file.pdf");

and the pdf

回答5:

Sometimes you have to change a font like :

PDFont font = PDType0Font.load(document, new File("C:\\Users\\dw\\Desktop\\FZLTXHJW.TTF"));

Replace "FZLTXHJW.TTF" with the font you have and it should support your text encoding.