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Common Preflight Errors and Fixes

Gelato Globe identifies design file as 'Print ready' after it is uploaded to the Library. This is if file is in correct size format and has appropriate number of pages. After uploading, paper type is required to be selected for the file. For any design file to be Print ready in one go, it has to be Preflighted with PDFX4- Gracol2006. After the preflight, a report is generated showing the errors. The “Gelato Standard” PDF export preset can be downloaded aninstalled in your Adobe tools.

The following aspects are covered:

1. Fonts not embedded, getting changed or broken/mixed up

2. Converting Spot colours to CMYK colour profile

3. Overprint

4. Problems with glyphs/missing Glyphs

5. Registration colour detected

6. Graphic not ignoring CMYK profiles

7. The image does not override the CMYK profile

8. Layers in the linked file is override


Fonts not embedded, getting changed or broken/mixed up

This error occurs when fonts are not embedded in PDF



  • Always have 'Fonts Embedded' option checked on while exporting the file as PDF. This option is selected by default in Indesign CC.
  • Make sure PDF/X-4: 2010 format is selected while exporting PDF from MS office applications
  • Always use Gelato Print Preset ‘Gelato Standard 1.4 (PDF/X-4 Coated GRACoL 2006)'
  • Keep ‘Preflight’ enabled in InDesign
  • Check Preflight errors in the same window before exporting PDF


Note: Also, this issue occurs when files from MS Office are saved to PDF, and PDF/X-4: 2010 format is not selected. Refer here to know more.


Converting Spot colours to CMYK colour profile

When checking your file, you may notice that there are other colours than CMYK called Spot colours. On Gelato, we recommend to change them into CMYK profile colour to avoid any issues with printing. Pantone shades/spot colours have the CMYK values defined, so you may check the CMYK values for a particular spot colour (Pantone shades) and apply them.

In order to find out if a spot colour is used in your InDesign document, please go to Windows > Output > Separation view in InDesign.

Once the below window appears, you will see the additional colours that need to be converted into CMYK, e.g. in the screenshot below that would be PANTONE S395 C.



1. Go to Window > Color > Swatches

2. Double click the spot colour that you need to convert to CMYK

3. In the tab Color type change 'Spot' option to 'Process' and click OK




If a transparency panel is not used to change the transparency of an artwork, the fills and strokes in the artwork will appear opaque. This is because the top colour knocks out, or cuts out the area underneath. You can prevent knockout by using the Overprint options in the Attributes panel. After you have set your overprint options, you can preview the overprinting effects on‑screen.



  • Select one or more paths with the Selection tool or the Direct Selection tool, or select text characters with the Type tool. To overprint the stroke of a path that is pasted inside a frame, you must first select the nested (inner) path using the Direct Selection tool
  • Choose Window > Output > Attributes. In the Attributes panel:

1. To overprint the fill of selected objects, or to overprint unstroked type, select Overprint Fill

2. To overprint the stroke of selected objects, select Overprint Stroke

3. To overprint a colour applied to the spaces in a dashed, dotted, or patterned line, select Overprint Gap



Problems with glyphs / missing Glyphs

Glyphs are graphical representations of characters (letters, digits, and symbols). While displaying font characters, some characters that are completely missing result from an incorrect sub-setting for TrueType fonts, only an empty glyph is displayed.

In the case of Type 1 fonts, however, the system uses .notdef glyph (replacement character) instead. This is often simply a box containing an X.



  • Open the design source file
  • Find missing glyphs/characters using Type > Find Font in Indesign
  • Replace with a character which was used in the layout
  • Again create a PDF, using Gelato print presets


Registration colour detected

This error is encountered when you have used a colour of 'Registration' or 'All' within your file.


  • These colours should never be used unless you are required to provide crop marks (and it is recommended to not include crop marks when uploading files to Gelato Globe). Thus avoid the use of Registration or All colours
  • This is a common error when using InDesign and there is an easy way to resolve this issue. Manually identify and change all elements of your original design from Registration or All colours to another colour such as Black


Graphic not ignoring CMYK profiles

InDesign, by default, ignores CMYK profiles you have embedded in your images.

The rule “Profile Setting May Cause CMYK Conversion” gets triggered if your document's CMYK Color Management Policy was not set to “Preserve Numbers (Ignore Linked Profiles)” when the document was created.


These policies get saved with the document when it is created, so to make a change, try closing the document, in the Edit menu, open Color Settings, check the Ask When boxes, set the CMYK policy to Preserve Numbers, and then reopen the file.

You should get a dialogue box that will let you change the document's policy:

Before you create new documents with your preflight profile make sure colour settings is set to Preserve Numbers (Ignore Linked Profiles):


The image does not override the CMYK profile

When checking your file, you may encounter the following notification: 'The Image does not override the CMYK profile'. It means that the CMYK color profile (used in the file's logo/image) is overriding the current color profile (used in the Indesign document). The logo/image is not changing the color values and is not compatible with the current color profile that is set in InDesign.

The logo file has an embedded color profile which is set to override the InDesign Document color profile automatically. In order to maintain the same color values as used in the image, you can override the InDesign document CMYK color profile.

Layers in the linked file is override

When checking your file, you may encounter the following notification: 'Layers in the linked file is overridden'. That doesn’t mean that you cannot use layers within your files, it just means that whenever you make any changes within the file you created it will be reflected in Indesign document e.g. adding a new layer in the linked file will be reflected in InDesign while updating the link.

In order to prevent new layers from appearing in your InDesign document please enable the option below:

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