can i save embedded font to font file?

Technical Support Apryse SDK
1

hello,

i'm parsing pdf magazines and need to separate text from images.
all ok for now but i have a problem.

i want to save the embedded that comes withing the pdf to be separated file

with not much documentation about this i managed to do something but it doesn't quite work:

if (font.IsEmbedded()&&font.GetEmbeddedFontBufSize()>0)
{
  Obj fObj = ereader.GetFont(font.GetName());
  if (fObj!=NULL)
  {
    Filter filter = fObj.GetDecodedStream();
    FilterReader reader(filter);
    unsigned char fontStream[1024];
    int counter=0;
    FILE*file=fopen("fontFile.ttf","wb");
    while (reader.Read(fontStream,1024)>=1024)
    {
        counter++;
        fwrite(fontStream,1,sizeof(fontStream),file);
    }
          fclose(file);
  }
}

i could use some help with this.
thanks.

2

You can extract the embedded font (is any) using the code along the
following lines:

// C# pseudocode (C++ & JAVA is essentailly the same, apart from minor
syntax differences).
pdftron.PDF.Font font = // ... e.g. new pdftron.PDF.Font(fObj);
Obj font_stm = font.GetEmbeddedFont();
if (font_stm != null) {
  Filter flt = font_stm.GetDecodedStream();
  FilterReader reader = new FilterReader(flt);
  StdFile out_file = new StdFile("out.dat",
StdFile.OpenMode.e_write_mode);
  FilterWriter writer = new FilterWriter(out_file);
  writer.WriteFilter(reader);
  writer.Flush();
  out_file.Close();
}

3

What extension shall i use? ttf? how can i know?

4

Hello Fraga,

If the font is TrueType, you should be able to use the TTF file extension.

There are third-party tools which may help you identify information about the font after you extract it:

http://unix.stackexchange.com/questions/26053/is-there-a-unix-command-line-tool-that-can-analyze-font-files