If you do not need to edit the text, you can create a perfect vector object for each character. You can choose this by checking the “Convert Characters to Curves” option in the General tab of the Options menu. Every character will then be rendered with curves as a graphical representation of the character using the font information stored in the PDF. If a font was not embedded in the PDF, pdf2picture will refer to the /fonts/ directory in the pdf2picture installation folder. You can add Type 1 or TrueType font to this folder as needed to ensure a perfect match. To outline only specific fonts during conversion, email firstname.lastname@example.org for instructions.
If you do not need to edit the file at all, another option is to use the bitmap mode in pdf2picture or use pdf2image which creates a high-quality image of the file in four popular web and publishing formats..