HTML to PDF/RTF Java converter and tools › Forums › PD4ML v3 Archived Forums (Read Only) › General questions / FAQ › There was an Error opening document. Erro when opening PDF. › Re: Re: There was an Error opening document. Erro when opening PDF.
Try to open the PDF in a text editor (as plain text). I suspect the file either 0 bytes long or has only PDF file prefix.
org.zefer.html.doc.css.CssRuntime init error is obviously a reason. For some reason it cannot locate all needed libraries (.DLLs in a case of .NET).