Method for improving the print quality of graphic elements

A method for improving the print quality of graphic elements in the form of letter graphics in PDF documents of a prepress stage of a printing process by using a computer, the method comprising the following steps:

• using the computer to analyze page content of the PDF document and saving the page content in a data structure;
• using the computer to search the data structure for graphic elements in the form of letter graphics fulfilling preselected criteria relating to an evaluation of a height and width of graphic paths of the graphic elements being present in the PDF document;
• in response to the search for graphic elements in the form of letter graphics fulfilling preselected criteria relating to the evaluation, selecting graphic elements not exceeding a predefined height or width of the graphic paths of the graphic elements being present in the PDF document;
• converting the selected graphic elements into image masks by rendering the selected graphic elements on the computer;
• using the computer to substitute the image masks for the selected graphic elements in the PDF document;
• and
• printing the PDF document with the image masks on a printing machine.