callas pdfToolbox 4.5 offers a very easy way to visualize rich black text (mostly original black text that was converted to 4C unintentionally) and areas with ink coverage too high for the desired printing condition.
Alternatively, you can also drag-and-drop the PDF document onto the callas pdfToolbox 4 application icon or the callas pdfToolbox 4 canvas.
The bottom line gives information about the PDF's dimension and, in this case, the claimed PDF-Standard and the embedded Output Intent.
The Visualizer can also be opened by pressing Cmd-Shift-I.
Enter the desired TAC corresponding to the planned printing condition (1). A TAC of 300% is a good compromise if the only known fact is that the Ad will be printed on coated paper.
Depending on the visual result, it is to decide if the problematic area in question has to be fixed. In this example, there is a large part of the image in the area (2) of 300 to 320% TAC (3) which has to be corrected for this example.
Close this window by pressing the Done button.
The Switchboard gives you access to various pdfToolbox 4 functions, logically grouped.
Shows the available color conversion tools.
DeviceLink conversion is needed to perform a color transformation of the complete PDF to a different or adapted printing condition.
To limit the total ink coverage of the PDF to 300%, choose "Sheetfed offset, reduce to 300% ink limit (Europe)" – part of the optional DeviceLink Add-on (1).
To convert the PDF, press the Execute (2) button.
Successful DeviceLink conversion.
No relevant areas are above the entered TAC.
The pink elements (1) are colored in registration color thus resulting in 400% TAC (2) – these elements are irrelevant as they are outside the trimmed area.
It is also possible to toggle between views by pressing Cmd-left or Cmd-right.
Elements defined in black only shall not be visible using the CMY only view (1). However, the Mercedes Star (2) is. To better view the Star, use the Loupe tool.
To open the Loupe window, hold down the Shift-Key and drag a rectangle around the area of interest.
Switching between views can also be achieved by using the right and left key for fast navigation.
Shows the available color conversion tools.
"Correct 4c Black" is needed to perform a color mapping for text or vector elements defined in rich Black to Black only.
To open the Loupe view, hold the Shift key while drawing a frame around the object of interest.
No more black only elements on the CMY only plates.
Change back to the K-only view.
When placing Ads in a layout, it is often necessary to remove registration marks and clip the PDF to the visible area. This can be achieved in 2 steps.
The Arrange tools allow to combine, rearrange and separate PDF pages in various ways.
Press the Slice button.
Slice lets you "cut away" objects. The affected objects are defined by a preflight check. callas pdfToolbox 4 comes with a predefined list to check for various objects.
For our example, it is necessary to choose a check that finds objects defined in registration color.
This fix creates a duplicate of the opened PDF. Therefor, you have to choose a location for the newly created document.
This action results in 2 PDFs. One file with the sliced off objects and the PDF with the remaining objects.
The Home button brings the user back to the main view of the Switchboard.
The Pages group offers tools that can change the size or the position of a page.
Crop to visible clips the PDF to the visual objects.
Press the Execute button.
Pressing Cmd-S saves the altered PDF to disk.
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