PDF 1.2 and 1.3 files never contain transparency, only PDF 1.4 (Acrobat 5) or higher may contain transparent objects. Only native files and PDF 1.4 or higher directly exported or saved from InDesign, Illustrator or Photoshop can contain transparent artwork. Inner Glow1 and Outer Glow1 in Illustrator (Effect > Stylize >â¦).Adding Drop Shadows and Feathering to objects.Dragging and dropping or copying and pasting transparent objects from Illustrator into InDesign.Placing native files with transparency from Adobe Illustrator, InDesign or PhotoShop.You can specify the opacity of objects with the Transparency palette in InDesign and Illustrator (Window > Transparency).Ī user can also unintentionally add transparency to a document by: The underlying artwork becomes visible through the surface of the object with transparency. You can add a degree of transparency to your artwork from 0% opacity (completely transparent) to 100% opacity (completely solid). When you create an object, by default it appears solid. This can result in a loss of image quality, as the compression method removes information (this is called a lossy reduction method) but the file sizes are greatly reduced thanks to the JPEG compression. Therefore, it makes sense to remove the information that cannot be displayed anyway. This type of image contains more information, more details, than can be reproduced on screen or in print. The JPEG compression method is best suited for grayscale or color bitmap images.Ī typical example of an image for which JPEG compression is advised is a continuous-tone photograph. Transparent images are compressed with JPEG filter after resolving the transparency.The Adobe PDFL Library will convert the transparent objects (which has the PDF blending colorspace set to CMYK) to the document profile and will not use the standard Photoshop colorspace (Images will be tagged with the document profile).Note: The flatten action needs an additional license: "APOGEE_PREFLIGHT_ACTION_FLATTEN".
This will also avoid typical flattening issues like thin white lines in the output. The PDFRender enterprets directly transparent PDF files and will maintain your artwork at the highest quality until the final printing process. We strongly discourage to flatten PDF files that will be used by the Agfa Apogee PDFRender. This action list should however be used to export files to another system that requires flattened PDF files. It can be used together with another profile or action list to automate the flattening process of PDF files within :Apogee Prepress. The action Transparency flattening with compression v7.1.7 will remove all transparency by flattening the PDF file.
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