REQUIREMENTS TO FILES

In order to ensure that quality of print corresponds to your expectations, please read the requirements to the print file sent to the printing house.

Print files

For printing we accept pdf composite or print files. It is also possible to submit design files, but in such case it is necessary to make sure that the file is sent with all fonts, images, etc. attached to it. We accept files that are made using Corel Draw, Adobe Illustrator, Adobe In Design, Adobe Photoshop programs, both on PC and MAC platforms.

For printing we do not accept under any circumstances files that were made using Microsoft Word, Microsoft Power Point, Microsoft Excel programs. If necessary, for an additional price we can convert such files into print files that correspond to all respective requirements.  

Color separation

Only files with CMYK or Pantone color separation are suitable for printing. 

Color separation means conversion of an image present in the RGB color system used by the input device (scanner, digital camera, etc.) into a color system suitable for the printing device, which in case of four-color printing is CMYK. Color separation is often mistakenly understood to mean production of printing films and plates, while actually conversion of an image from RGB to CMYK, i.e. color separation, is performed during image processing in Adobe Photoshop or during printing using a layout program. Software performing color separation takes into account the available parameters of the printing process (settings in Photoshop or ICC profile) and tries to obtain a result that is as close to the original as possible, within the possibilities of the output device. 

Therefore, it is important to remember, that separation performed for one device may not provide the same result during printing with another device, and, for example, if separation was intended for coated paper, printing on newspaper may result in significant technical problems. It is recommended to perform most of printing processing in RGB color system and to separate an image for every specific place of use according to the ICC profile using Adobe Photoshop. As an alternative, in case of newer layout programs (for example, Adobe Indesign CS) it is possible to use RGB images also in layout, ensuring that RGB and CMYK profiles are set up correctly and that the output will be a composite PDF file with CMYK or CMYK and spot colors.  

Bleed

During layout and design bleed of 3-5 mm must be added for every outer side. 

Texts

Black thin texts must be made with 100 % K, i.e. black. If CMYK color separation is made for black color, then problems may emerge with print precision of colors and the text will be illegible. 

We offer a very wide choice of fonts, however, obviously we don’t have all the fonts used. Therefore, please vectorize (convert to create outlines) all texts used in files, or send the fonts used with the design file to us.  

White text on a black background 

Since 100% K black tends to seem too bright when it covers a large area, rich black (which incorporates black with other shades) is often used in design. Even the tiniest print precision error makes text illegible when printing white text on such a background (the same applies with a dark picture or color background). Minimum 10-point font is customary when using serifs, cursive or fine lines; 8-point font is common for a text without serifs. Either 100K50C or 100K50C40M should be chosen when using rich black: both types guarantee nearly maximum darkness (richness) during the printing process. 
A non-overprint black (100K-1C-1M-1Y) outline measuring 0.1-0.15 mm set behind text also helps to reduce print precision problems when white text is situated on a rich black background.

Black color and overprint

In order to get a proper black surface, we recommend to use the following formula in CMYK: C 80%, M 40%, Y 40%, K 100%. 

Overprint is added to all black (100% K) objects in order to avoid the most miniscule print precision errors becoming visible around black text, lines and smaller objects set against a color background. Non-overprint black should be used in the case of black objects for which overprint is not recommended (i.e. large areas set above a picture or color that might glare through):  

  • regular black (triggers automatic overprint): 100K
  • rich black: 100K-50C or 100K-50C-40M 
  • on-overprint black: 100K-1C-1M-1Y  

Another common overprint problem is when the feature is unintentionally added to objects that are white or colored, as a result of which text can disappear or colors change. It is recommended to remove overprint from all non-black objects during preflight. 

Spot color  

“Corporate colors” are usually designated using PANTONE® color codes, which reference a given color-mix formula. It is important to keep in mind that a single color mix may provide significantly different results when printed on different types of paper: for example, you can compare 123 color used on coated and uncoated paper from the sample according to the PANTONE® solid coated and solid uncoated fan guides. It is wise to designate different corporate colors for different paper types, as well as for various printing methods, in order to achieve a result that is visually similar: for example, PANTONE®123C (coated paper) could be an equivalent for PANTONE® 115U (uncoated paper) when printing business cards or forms.

This factor is often overlooked and the results may stray from the customer’s wish, since a printer mixes colors by number and checks the result using a fan guide that corresponds to the ordered paper type. 

It is also recommended to note that a large number of PANTONE® spot colors is not practical for use in four-color printing, and equivalents found using a computer or a fan may not give the desired results. Furthermore, older color fan guides and software are based on print colors used in the US.  

Envelopes

When designing an envelope at least 10 mm grip space (print free area) must be left on the right or left edge – for printing on both face side and flap (back side).