[PDFBOX-914] Using TextToPDF to create a PDF from the empty string produces unreadble PDF file (patch included)

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3.1
• Fix Version/s: 1.4.0
• Component/s: Utilities
• Environment: All
• Assignee: Andreas Lehmkühler
• Reporter: Neil McErlean
• Created: 04/Dec/10 22:03
• Updated: 20/Dec/10 09:38
• Resolved: 11/Dec/10 17:52

Description

If you create a PDF document from org.apache.pdfbox.TextToPDF like so:
TextToPDF pdfCreator = new TextToPDF();
PDDocument pdfDoc = pdfCreator.createPDFFromText(new StringReader("")); // Note the empty String
then it does produce a PDF file. But the file cannot be opened as it contains no pages.
Adobe Reader (I have 9.4.1), and Mac OSX's Preview/Quicklook cannot open the document.

I have attached (or will do in a minute) a patch that includes a test case that reproduces the problem (no PDPages in a PDF with no text).
And I've patched TextToPDF so that it inserts a single empty page for an empty string input.