Especially newspaper producer are familiar with the occasional display that is causing nothing but headache. All parts of the workflow get a hiccup when processing a problematic file. The file is either not processed at all or its output apparently is not correct. No time is left to get in touch with the supplier of the ad – and by definition, newspapers cannot wait.
Also in cases where designers used one or even many spot colors although the job is actually for a CMYK press run, color conversion to CMYK can cause problems, especially when transparency was flattened before converting the spot colors to CMYK.
As a last resort, the PDF can be converted to an image PDF (make sure to use CMYK as otherwise your separations will be spoiled). While Adobe Photoshop is a decent tool to achieve this, pdfToolbox makes it a matter of a click.
To open the Switchboard, click on the menu item "Switchboard" under the "View" menu or use the keyboard short cut "Ctrl-2" or "Cmd-2". Then click on the "Document" group icon.
Click on the "Image export" icon to go to the image export action.
After completing the export, please double check the size of the exported PDF – as it has been saved to disk as a new file, please open it from there to display it.
When exporting a PDF to an image PDF, pdfToolbox ensures that the CMYK separations are maintained, and guarantees crisp text and vector objects in the print output.
Depending on the resolution chosen during image PDF export, text will remain sufficiently clear to be readable well enough. Look at the smallest text on the page using the "Loupe" in pdfToolbox to decide whether the resolution chosen is sufficient for your print production. As a rule of thumb: for newspapers 200 ppi is sufficient if no small text is present, otherwise 300 ppi should be chosen. For sheet fed offset 300 ppi resp. 450 ppi should be chosen.