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File preparation rules

Materials shall be prepared according the following requirements:

  1. Files shall be prepared in PDF form (versions: from 1.4 to 1.6), using the Press quality settings.
  2. Then converting the images and objects to CMYK colour system, ICC profile shall be used corresponding to the used type of paper (According Table No. 1).
  3. The image resolution (not less than): Coldset 170 dpi, Heatset 300 dpi.
  4. PDF files may not contain RGB, SPOT objects.
  5. The submitted PDF file shall be in original size.
  6. The Pages shall be centred in PDF file.
  7. PDF file shall include all the used fonts.
  8. PDF file shall not include the colour ICC profile.
  9. In case of different colourful object coating it shall be observed that the object of the darker colour shall cover the edge of the lighter object for 0.1 – 0.4 mm (Trapping).
  10. In the products provided for post-treatment shall be used the crop marks and bleeds for not less than 3 mm. The texts and important objects shall not be closed than 4 mm to the cropping.
  11. The settings of the customer overprint for all the colours are maintains as well as there is performed the forced overprint Black setting for 100% Black objects.
  12. If overprint or trapping has particular requirements, the Customer shall obligatory inform the Customer about it before the order submission.
  13. The file names within one issue shall be with similar structure in order to provide the automatic workflow:
    File name / underline / page number / dot / pdf
    For example: Izklaide#21_05.pdf
  14. Multiple consecutive pages can be included in a single file, with the total file size not exceeding 500 MB.
  15. In case of discovered faults, the new file shall be submitted by the changed name.
    For example: Izklaide#21_05New.pdf
  16. Cover files shall be submitted in the combined form (cover 4 with cover 1, cover 2 with cover 3) or in a split form – cover 1, 2, 3 and 4 – each separately.
  17. If the publication is partially in color, the color page title must include the indication “CMYK”.
    For example: Izklaide#21_05CMYK.pdf

 

 

Parameter Coldset (Newspapers) Heatset (Magazines, Catalogues) 
CMYK ICC profile ISOnewspaper26v4.icc – newspaper (NP) and improved newspaper (INP)
ISOcoated_v2_300_eci.icc – HWC, MWC, LWC, WFC papers
SC_paper_eci.icc – SC, MF, LWU, MFC, INP papers
PSOuncoated_v3_FOGRA52.icc – WBU, SBU papers
Coloured or white reading matter on coloured background Not less than 10 dots Not less than 6 dots
Total ink amount 240% – newspaper (NP) and improved newspaper (INP) 270% – INP, MF, SC, LWU papers
300% – LWC, MWC, WFC, MFC, MFU papers
300% – HWC paper for covers
Screening of large colour areas 95% – newspaper (NP) and improved newspaper (INP) 98% – INP, MF, SC, LWU papers

 

Newspaper Tabloid format size Newspaper Broadsheet format size

If necessary, Poligrāfijas grupa Mukusala can provide technical advice on preparation of PDF files. First two advisory sessions are free of charge.