We have been set a task to spot the eight mistakes in an InDesign file. We have been told that when printing no more than five plates should be used. Here is what I have found.
One of the colour swatches is set to RGB, which is not a massive problem because InDesign automatically converts everything to CMYK. Although when it comes to printing there may be a colour shift so it's best to keep everything in CMYK mode from the set off. This colour swatch has been used quite a lot throughout the document as well, so it could cause a problem when printing.
Another mistake that I have found within the swatch menu is that there are colours that use CMYK but also an additional three spot colours. This means that seven plates would have to be made when we have been limited to five. This would be resolved by either converting these colours to CMYK or finding out which colours we haven't used within the document and deleting the appropriate swatches. If you go on 'select all unused' then it automatically tells you which colour swatches to delete.
One of the links are missing from the document, meaning that it doesn't contain one of the image files. This cannot be resolved by us because the image literally doesn't exist anywhere on our computer. In this case the printer would have to get in touch with the client so that they can get the original image.
On the last page the registration swatch has been used for the type as opposed to black. This is normally fine because it creates a richer black. However when checking in the separations preview I found that it has exceeded the ink limit. This would be solved by simply changing it to black.
The bottom image is pixelated, this is because the resolution is set to 72 PPI when it should be at 300.
On the first page the background colour is only filled into the border and hasn't left any room for bleed.
One of the images is set to RGB colour mode.
One of the images is a large file size and has the wrong dimensions in comparison to the other images.
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