Printing guide

What is the purpose of this guide?

• Show you how to find the appropriate image resolution (in dpi/ppi, cf. below) for a minimum quality print
• Show you how to calculate the maximum print size for a given image size in pixels (small, medium, high-resolution, etc)
• Show you how to find the required image size in pixels for printing at a specific size (15x10cm or 6x4”, 18x13cm or 7x5”, etc)
  
  

Pixels - fundamental units of digital images

All digital images are measured in pixels, the smallest building block to create an image on screen, which stands for “picture element”. The offered pixel dimensions are indicated in the Personal Use License Pricing dialog before the currency in EUR, starting with the longest edge of the image in pixels:

The recommended resolution range for best results on inkjet printers, depending on viewing distance and print sizes runs from 300 dpi to 140 dpi.

How do I calculate the maximum print size for a given pixel dimension (image size)?

Image Sizing Calculator
This calculator can help you choose the correct dpi, viewing distance and image dimensions. In the Image Size Calculator, delete the default dpi to clear all values:

1. Entre the pixel dimensions (for instance image width = 1024 and image height = 684)
2. Enter the viewing distance in cm, for example, 60 cm and press Enter
3. The calculator will display the maximum print size in cm and in inches

Pixel calculator
When you know exactly what dpi value you are expected to use for the print, you can use this Pixel Converter.

1. Click “Clear all” button in red to delete all values
2. In the center column, enter the length (width) and the height in pixels
3. Enter the required resolution, namely 300
4. Click the calculate button to obtain the maximum print size

The results indicate the maximum print size for your 300 dpi is 15 x 10 cm (6x4”).
If you wish to print at a slightly bigger size, let’s say 18x13 cm (7x5”), you will need to decrease your dpi to 200.
1500 pixels / 200 DPI x 2.54 cm (to convert to metric) = 18,67 cm maximum width
1000 pixels / 200 DPI x 2.54 cm (to convert to metric) = 13,35cm maximum heigh

200 dpi for small and medium-sized prints is quite acceptable.

How do I calculate the required pixel dimension for a specific print size (dpi)

Use the  online Pixel Calculator: 
1. Click “Clear all” button in red to delete all values
2. In the first column (left), enter the length in mm (width), = 150mm
3. In the second row of first column, enter the heigh in mm = 100mm
4. Enter the desired dpi = 300

Reference tables

Given 300dpi what is the recommended image size based on pixels

This table shows, based on usage, the minimum recommended resolution in dpi/ppi and the minimum required sizes of the corresponding digital images in pixels: