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Errors and warnings
The file contains colors other than CMYK
If the PDF Checker shows this message, it means your file contains elements in a color space other than CMYK. CMYK colors are the four basic printing ink colors. Using them ensures your graphic maintains the desired quality. Printing in a different color space is possible, but colors will be less vivid than what you see on the screen.
Solution:
Adobe Photoshop: Open the file, go to “Image” > “Mode” > “CMYK”, then save the file.
Adobe Illustrator: Open the file, go to “Edit” > “Edit Colors” > “Convert to CMYK”, then save the file.
CorelDraw: Open the file, go to “Bitmaps” > “Convert to CMYK”, then save the file.
Affinity Designer: Open the file, go to “Document” > “Color” > “CMYK”, then save the file.
Affinity Photo: Open the file, go to “Document” > “Color” > “CMYK”, then save the file.
The file contains RGB colors
If the PDF Checker shows this message, it means your file contains elements in the RGB color space. These colors are designed for screens, not printing. Printing in RGB is possible, but colors will be less vivid than what you see on the screen. Sometimes, your project might include both CMYK and RGB colors.
Solution:
Adobe Photoshop: Open the file, go to “Image” > “Mode” > “CMYK”, then save the file.
Adobe Illustrator: Open the file, go to “Edit” > “Edit Colors” > “Convert to CMYK”, then save the file.
CorelDraw: Open the file, go to “Bitmaps” > “Convert to CMYK”, then save the file.
Affinity Designer: Open the file, go to “Document” > “Color” > “CMYK”, then save the file.
Affinity Photo: Open the file, go to “Document” > “Color” > “CMYK”, then save the file.
The file contains PANTONE colors
If the PDF Checker shows this message, it means that the file contains elements in the PANTONE color space. This color space is prepared before printing and applied separately. This service is not available in our printing house. PANTONE colors will be automatically converted to CMYK. However, to maintain the best quality and accurate color reproduction, we recommend manually converting the files.
Solution:
Adobe Illustrator: Open the file, go to “Edit” > “Edit Colors” > “Convert to CMYK”, then save the file.
CorelDraw: Open the file, go to “Arrange” > “Convert to CMYK”, then save the file.
The file contains the overprint attribute
If the PDF Checker shows this message, it means that the file contains the overprint attribute. This refers to a specific element that should be printed separately and applied over the final design. Overprint often appears accidentally, for example, when copying a logo from another document.
Our printing house does not offer overprint services. Therefore, if files contain the overprint attribute, printing may result in mixed colors or altered shades of certain objects. For example, black elements may turn gray, yellow printed over a blue background may appear green, and white elements may disappear completely. Black objects on a white background usually retain their properties.
Solution:
Adobe Illustrator: Open the file, select the problematic elements, go to the “Window” menu, choose “Attributes”, uncheck “Overprint Fill”, then save the file.
Adobe InDesign: Open the file, select the problematic elements, go to the “Window” menu, choose “Attributes”, uncheck “Overprint Fill”, then save the file.
Fonts have not been converted to outlines
If the PDF Checker shows this message, it means that the file contains text that can still be edited. To avoid any printing issues—such as changes in font type or size—all fonts should be converted to outlines. This process turns editable text into non-editable objects, ensuring they remain unchanged when the file is opened.
For safety reasons, we do not accept files with embedded fonts, even if they have been encoded within the file. Every project requires converting fonts to outlines.
Solution:
Adobe Illustrator: Open the file, select all text, go to the “Type” menu, choose “Create Outlines”, then save the file.
Adobe InDesign: Open the file, select all text, go to the “Type” menu, choose “Create Outlines”, then save the file.
CorelDraw: Open the file, select all text, go to the “Text” menu, choose “Convert to Curves”, then save the file.
Affinity Designer: Open the file, select all text, go to the “Text” menu, choose “Convert to Curves”, then save the file.
Affinity Photo: Open the file, select all text, go to the “Text” menu, choose “Convert to Curves”, then save the file.
The file has incorrect dimensions
If the PDF Checker shows this message, it means that the file size does not meet the guidelines provided in our system. The dimensions of files sent for printing must match the sizes listed on the website. The acceptable tolerance is up to 3 mm smaller or up to 1 cm larger. The dimensions provided in the guidelines are checked and take into account the material's stretchability and the width of the printing roll.
For products that require double-sided printing, remember that the front and back of the design should have the same dimensions. Additionally, all files must have the same gross and net size.
When preparing your design for printing, also pay attention to the required file scale—1:1 or 1:10. If the guidelines specify a scale of 1:10, this has already been considered in the provided dimensions. In this case, you only need to adjust the resolution accordingly.
Solution:
Adobe Photoshop: Open the file, go to the “Image” menu, select “Image Size”, set the correct dimensions, then save the file.
Adobe Illustrator: Open the file, go to the “Object” menu, select “Artboard Size”, set the correct dimensions, then save the file.
Adobe InDesign: Open the file, go to the “File” menu, select “Document Setup”, set the correct dimensions, then save the file.
CorelDraw: Open the file, go to the “Layout” menu, select “Page Setup”, set the correct dimensions, then save the file.
Affinity Designer: Open the file, go to the “Document” menu, select “Document Setup”, set the correct dimensions, then save the file.
Affinity Photo: Open the file, go to the “Document” menu, select “Document Size”, set the correct dimensions, then save the file.
The file contains crop marks or margins
A design with crop marks and margins may have mismatched dimensions. These settings can be found in the “document settings” tab. Do not use margins or crop marks, as our guidelines already include the correct bleed area. We add our own crop marks to every design.
We have detected a difference between the so-called TrimBox and MediaBox. These are parameters embedded in the file indicating that not all of the design space is the target space. This likely means that margins or embedded printer’s crop marks have been added to the design. This issue may also cause an incorrect size error. Please prepare the file according to the dimensions specified in the guidelines.
Solution:
Adobe Illustrator: Open the file, remove the crop marks and margins from the document, then save the file.
Adobe InDesign: Open the file, remove the crop marks and margins from the document, then save the file.
CorelDraw: Open the file, remove the crop marks and margins from the document, then save the file.
Affinity Designer: Open the file, remove the crop marks and margins from the document, then save the file.
Affinity Photo: Open the file, remove the crop marks and margins from the document, then save the file.
Safe area frames
If you leave the safe area frames in the design, our software will add its own, which may cause issues with file verification. Make sure there are no safe area frames from us in the file before sending it.
Solution:
Adobe Illustrator: Open the file, remove the protective area frames, then save the file.
Adobe InDesign: Open the file, remove the protective area frames, then save the file.
CorelDraw: Open the file, remove the protective area frames, then save the file.
Affinity Designer: Open the file, remove the protective area frames, then save the file.
Affinity Photo: Open the file, remove the protective area frames, then save the file.
The file has more than one page
If the PDF Checker displays this message, it means the system could not verify your file or found no pages. This error may be caused by unrecognized graphic effects. Make sure the file is not damaged and has been fully downloaded.
Solution:
Check the file for layers and flatten them.
The file cannot be merged with the frame. Please contact customer support.
Ensure the file is not damaged. If the file is working properly, contact customer support.
Solution:
Check if the file is correct, and if the problem persists, contact customer support.
Incorrect file format, please submit files in PDF, PNG, JPG, or TIFF format
If the PDF Checker displays this message, it means the file is saved in the wrong format. We support PDF, TIF, JPG, and PNG files.
Solution:
Save the file in PDF, TIF, JPG, or PNG format.