How to properly create files
Every printed product has its own specific features, but you should always comply with a simple set of rules in order to have a perfect finished product:
The printable file must be provided in PDF format. If you have different files such as JPG, TIFF, WORD or POWERPOINT you can convert them to PDF using the free online service offered by Adobe and then upload them in the order.
Your layout shall always be in the CMYK colour model and the sum of the colour percentages shall not exceed 275%. Pantone colours shall be converted into CMYK, unless spot-colour print is specifically required.
The images you will include in your layout shall have a 300ppi resolution (for 70x100cm or bigger images the resolution can be 150ppi).
The chart below shows the reference sizes (in pixels) to create images with a suitable quality for printing:
|Format||Good quality||High quality|
Black in images
|Completely Black Background||30%||30%||0%||100%|
Black in texts
As for texts, it is essential that these are only made up of black K=100% - above all when the font size is less than 20pt.
Fonts shall be embedded or – alternatively – converted into paths. The failure to embed or convert fonts may result in unexpected outcomes during printing, because the characters which cannot be found are replaced.
If you are working on a file with different layers (e.g. Illustrator, InDesign, etc...), it is important to delete all the layers you do not want to be reproduced. Deleting the view may not be enough. We suggest you delete them completely, because - during rendering - some machines’ RIP may make them visible and consequently print them.
Do not use strokes that are less than 0.25 wide on a white background; on a black or coloured background, instead, the minimum is 0.4 points.
All the images used in the layout shall be embedded in the document. This applies especially to Adobe Illustrator® Read Adobe’s User Guide on how to embed images. If you do not manage to do it yourself, please attach a
.zip folder containing the images used to the order.
In order to avoid unexpected outcomes, always use the
Overprint Preview mode in order to check that the objects set for overprint by mistake – especially, white elements or very light ones – will disappear during printing.