I'm getting always 1-2 bytes more, when trying to get the file size of Rule-File-Binary (pdf).

I've uploaded a PDF file which is of size 80303 and with the tried solutions, I'm getting always 1 byte more

Tried solutions:

• @Default.Base64Decode(samplePDF.pyFileSource) -> 80304

• String FilePath = myStepPage.getProperty("samplePDF.pyFilePath").toString();
  PRFile afile = new PRFile(FilePath);  // Create a PRFile object with path provided 
  long len=afile.length(); // get the length of the file 
  tools.putParamValue("FileSize", len); -> 80304

• @String.length(@String.trim(samplePDF.pyFileSource)) * 3/4 -> 80304