title: PDFBox converting inches or centimeters into the coordinate system
body: <p>I am new to PDFBox (and PDF generation) and I am having difficulties generating my own PDF.</p>
  <p>I do have text with certain coordinates in inches/centimeters and I need to convert them to the units PDFBox uses. Any suggestions/utilities than can do this automatically?</p>
  <p><code>PDPageContentStream.moveTextPositionByAmount(x,y)</code> is making no sense to me.</p>