If you experience issues while importing a PDF file into FlippingBook Publisher, there may be problems associated with the source PDF document.
Single-page PDF files extracted from the imported PDF are too large
The PDF document layout requires each page to contain data from the entire document. This may cause an increase in publication sizes. If the publication size is too large, you can disable the “Include Single Page PDF files” option in the “Files For Download” settings. Another way to resolve this issue is to optimize your PDF file. You can do this either by compressing the PDF using an online service, such as smallpdf.com, or by optimizing your PDF using Adobe Acrobat Pro or InDesign.
Loss of quality after importing PDF file
If you experience a loss of quality, such as a color change (e.g., color fading) or shapes or text disappearing, you can either optimize your PDF document as described above or—if the previous tips did not work—use Adobe Distiller, which is part of the Adobe Acrobat Pro program. To use Adobe Distiller, open the PDF in Adobe Acrobat Pro and click on File > Save As > Other > PostScript. When you run a new PostScript file, an Adobe Distiller window will open. Please wait until the progress bar shows that the conversion is complete and then click on the name of the PDF. The file that opens will be an edited PDF. Such a PDF will be compressed and thus you should have no issue while importing this new file.