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Print Specifications: A Good File Has Its Benefits

Providing a good, completed file decreases the chances of errors with your labels. The production time of the order is shortened, while delivering a good file increases print quality.
Do you have any questions about your file? Do you not possess the right software? Do you need any adjustments in your current file? You can always contact us! You can reach us during our business hours between 8:30AM to 5:00PM (UTC +2)  at +31 (0)537370160 or send an email to 


For the layout of your file we advise you to make use of reputable software, such as Adobe InDesign, Illustrator and Photoshop. With these softwares you can easily get your files ready for production. This will result in a satisfactory outcome.

My design is ready, what now?
After you finished the design of your label, you can dub your file press-ready. Save your document as a PDF-file. Underneath you can find a description about how to create a PDF-file (per program).

1. Export your file.
2. Select at ‘‘Document Setup’, ‘Adobe PDF: PDF/X-1a:2001’ (Compatibility Acrobat 4 (PDF 1.3)). This is the only PDF-type that legitimately flattens the transparency and includes fonts.
3. Check the next option ‘Marks and Bleeds’ -> ‘use document bleed settings’ ’.
4. When you wield a 2 mm expiration, you’ll have a PDF ready for production.
PDF exporteren (InDesign)
PDF exporteren (InDesign)
1. Save your document through the option ‘Save As’.
2. Select ‘Adobe PDF’.
3. Select at ‘Document setup’, ‘Adobe PDF’: PDF/X-1a:2001’ (Compatibility Acrobat 4 (PDF 1.3)).
4. Check the next option ‘Marks and bleeds’ -> ‘use document bleed settings’.
5. When you wield a 2 mm expiration, you’ll have a PDF ready for production.
PDF opslaan (Illustrator)
PDF opslaan (Illustrator)
1. Save your document through the option ‘Save As’.
2. Select “Photoshop PDF”.
3. Select at Document setup, ‘Adobe PDF’: PDF/X-1a:2001’ (Compatibility Acrobat 4 (PDF 1.3)).
4. Check the next option ‘Marks and bleeds’ -> ‘use document bleed settings’.
5. When you wield a 2 mm expiration, you’ll have a PDF ready for production.
PDF opslaan (Photoshop)
In short, you can use all programs to create a PDF-file. Photoshop is used for adjusting images, Illustrator is for logos and vector images, and InDesign is for eventually combining all elements to create a complete layout.
It’s of great importance to deliver a file format with equal size to the formats you’ve ordered. A well designed file has the right image settings of 2 round. To be certain, you can add a safety margin of 2 mm to your file. Always save your file as a PDF.
Create the files in CMYK. Convert PMS and RGB colours to CMYK colours. During this process it might happen that the colours will change. We advise you to create black texts as C: 0, M: 0, Y: 0, K:100. If your design includes white ink, use white as the spot color with the name ‘white_ink’. For the die cut, use spot color C: 0, M:100, Y: 0, K: 0, with the name ‘stans’.


CMYK colours are the basic colors for printing (C: Cyaan, M: Magenta, Y: Yellow, K: Black). By mixing these colours, you can create almost all colours. RGB colours are light colours, that you commonly use on your monitor (R: Red, G: Green, B: Blue). You will notice major differences on your monitor, because RGB colours are brighter than CMYK colours. When you convert an image with RGB to CMYK, the colours will change. You can use Photoshop to adjust the image to your wants and needs.

PMS (Pantone)

The Pantone Matching System (PMS) is a standard colour system for printing. PMS colours are colours that are mixed manually. When you choose for a particular colour, only that colour will be used when printing. The Full Colour press technique works with opposite values, where as one makes use of a grid. PMS is comparable to RAL colours, which works according to the same principles. Differences in your layout may occur, when choosing PMS colours for layouts and CMYK for printing. It’s very important to take this into account. 

How do I convert my file to CMYK?
You can convert to CMYK when creating a new file in Photoshop or Illustrator. You have to define your intention to ‘print’ in InDesign. In that way, the modus will automatically vault to CMYK. Do you already have an existing file, but you aren’t sure if CMYK is used in the settings? You can check this by clicking on ‘Document Setup’. You can find this button at Illustrator under ‘document color modus’ and at Illustrator under ‘modus’.
Labels that are printed on metallic, fluorescent, or transparent materials can be used for white ink. First, a layer of white ink will be printed on the places where white ink should be placed. You can place White Ink underneath the desired colour elements in Illustrator or Indesign, and install the upper element as ‘over print’. It’s of great importance, that a white printing on our materials is installed as White Ink. Choose ‘Full color + white’ in the configurator on our website. Do you want to know more about white ink? Read more below.

White Ink - what and how?

When you place an order on Zolemba, you will probably get the question if you want to place white ink in your label. What does that mean? Below we explain what white ink is, what it is used for and how this is added to your design.

What is white ink?

White ink is a white layer underneath the color print of your label. You can choose for white ink to maintain the colour fasting on your label.

How does this work?

At first, white ink is printed on the label. After this, the colour gets printed, overlapping the white ink. The white surface will make sure that colours appears as more ‘fast’. The option to add white ink to your design, is fully up to you. Depending on your label, you can decide if you want to add white ink or not.
Zonder DekwitMet Dekwit
                 Excluding White Ink                                          Including White Ink

To which materials is white ink applicable?

White ink can be printed on the following materials;

- Paper silver/gold

- Paper fluor orange/yellow

- PP silver

- PET clear

If you do not choose to place white ink on you silver or gold label, a great colour type will come forward, ‘metallic’.
If you do not choose to place white ink on your clear (Transparent) label, the colours will automatically become transparent too. White (without white ink) won’t be able to be printed.

How do I add white ink to my design?

1. You can add white ink to your design, when you want to make sure that your labels get printed with a white surface. Follow the following steps in Illustrator:

Place an additional element with white ink underneath. Before this, you can copy, for example, the text.

2. The copied element will be shown in white ink: - create a colour swatch
Maak een staal aan

•• Create a colour swatch and name this swatch ‘white_ink’, choose for color type ‘spot color’ and the color mode CMYK (like anything else in your file). Set the values to 0%. Give the copied element this colour.
3. Place the copied element exactly in the coloured element. This element is assigned as ‘filling overprint’. If attributes isn’t available in your Illustrator window, you will need to go to ‘window’, selecting ‘attributes’. The side window will be added:
Vulling overdrukken

Everything that needs to be printed, needs to have the filling color ‘white_ink’. This is also applicable for the white text. Whatever white element won’t be printed on coloured or transparent labels, unless it includes white ink.

Imagine your label is of PET material and you would like to have a blue element with lightblue text. You want to colours to really come forward. In this case, you first have to place an element with white ink, above the blue element, above the text in white ink and above that the blue text. In total you will have 4 printing layers. When you order the labels online, choose ‘full color + white’ in the label configurator. Do you have any questions about adding white ink to your design? You can contact us through +31-(0)53-7370160, or send a mail to

To get the best result, we ask you to use the ‘Iso coated V2 profile’. This is defined at ‘assign colour profile’.

We work with a standard rounded angle, radius 2 mm. If you’d like another radius, you can mention this in the comment-field in the payment section. Rounded angles make sure that the labels stick to the roll and attach to the material’s surface.

When you use lines in your document, we advise to use a minimal linewidth of 0.2 mm. When you use lines in your document, we advise you to use a minimal line width of 0.2 mm. If you choose for a smaller line width < than 0.2mm, it is possible that the lines disappear.

We are not in need of any cutting marks when printing. We recognize the net format when the bleed box isn’t inserted right.
We can print labels with expiration. It’s of great importance that the expiration is 2 mm round. Make sure that all objects that need to be printed with expiration, are also included in the 2 mm.
Safety margin

Make sure that there are no important texts or images in between the 2 mm expiration and edge of the label. In that way, we can make sure that no important objects are excluded.

The die cut is the net size of your label. You can create this die cut in a new layer, that you place upon the upper layer of you label. You can create this line with straight lines or rounded angles (radius 2 mm). For die cut, use spot color C: 0, M:100, Y: 0, K: 0, with the name ‘stans’. Your labels can be printed in any kind of shape, since we work with laser cutting. Be aware! The net size of your label needs to be equal to the ordered size.
It’s very important that you clearly define ‘bleedbox’ in your document. You can insert this when creating a new document in InDesign or Illustrator. You will see both programs in the window ‘New Document’. Instal the Bleedbox (expiration) at 2mm round. When you open the document, a red edge appears around your artbox. If you are going to use objects that need expiration, extent these to the red edge. This is how you create a ‘bleed’. Do not forget to adjust: at ‘‘Marks and bleeds’ assign ‘use document bleed settings’. This will automatically trigger the defined sizes. The bleed will be ignored if you forget this essential adjustment. It’s also possible to define the bleedbox in an existing document. You can do this in the document settings.
PDF opslaan
Images and other bitmap objects should at least have a resolution of 300 DPI. A lower resolution will not meet the desired result.

Carefully proofread your text. After this, you can save your PDF under as a PDF/X- 1a:2001' profile. Beneficial aspects of this profile make sure that all fonts get included in the document.

The font style needs to be present in your file. You can convert these fonts to make sure that nothing goes wrong. You can add this in Adobe Illustrator in the following manner: You open the file and select ‘Select All’, you go to ‘Texts’ and select ‘Create Letter Outlines’. In Indesign you can do this in the same way, only here this is named as ‘Create Text Outlines’. If you decide to do this, take into account that you need to name the file differently. If you neglect this, you won’t be able to edit the file. After converting the text to fonts, the physical text no longer exists, only vector objects do.
Minimum letter height

The minimum letter height is 1.32 mm. Texts with smaller letter heights will not be legible on your label. This is in line with the corps height of 5pt.

Flattening is of great importance when your document includes transparency. You can do this by using the PDF settings option ‘PDF/X-1a:2001’ (Compatibility Acrobat 4 (PDF 1.3)). The transparency effect that you want to use is saved in this manner. The likelihood of elements fading away is very high when this step gets neglected.
The second page allows for barcoding, numbering, or any other type of variable data. You can mark the desired location for your variable data in this section. A separate data file needs to be delivered. Preferably, we also would like to receive the desired font.
Multiple pages
You will have to create separate files when your PDF file includes multiple pages. Take into account that these pages need to have the same orientation. When you deliver such a file it will automatically be rejected by our system.
File safety
There should be no safety on your file when delivering, otherwise we won’t be able to process the file. When you save your PDF file with the PDF/X-1a:2001 profile, no obstacle should occur.