To change the resolution in Affinity Designer, you need to resize the document and adjust the DPI (dots per inch). Here's how:
- From the Document menu, select Resize Document.
- Make sure the Resample option is switched off. This is crucial to avoid changing the actual number of pixels in your design. You want to only adjust the DPI.
- Change the DPI value. DPI controls the print resolution - the number of dots printed per inch.
- Lower DPI (e.g., 72 DPI): Suitable for web graphics and viewing on screens.
- Higher DPI (e.g., 300 DPI): Recommended for professional printing to achieve sharper details and higher quality prints.
- Click Resize.
Explanation:
Changing the DPI without resampling only affects the intended print size. If you leave "Resample" on, Affinity Designer will actually change the number of pixels, potentially blurring or distorting your image if you increase the dimensions. Keeping "Resample" off ensures that the pixel dimensions remain constant, and only the intended print size changes.
Example:
Imagine you have an image that is 1500 pixels wide and 1000 pixels tall.
- If you set the DPI to 150, the image will print at 10 inches wide (1500 pixels / 150 DPI = 10 inches) and 6.67 inches tall (1000 pixels / 150 DPI = 6.67 inches).
- If you then change the DPI to 300 without resampling, the image will now print at 5 inches wide (1500 pixels / 300 DPI = 5 inches) and 3.33 inches tall (1000 pixels / 300 DPI = 3.33 inches). The number of pixels remains the same (1500x1000), but the print size has been halved.
Important Considerations:
- Intended Use: Consider the intended use of your design when choosing a DPI. Web graphics typically use 72 DPI, while print designs often use 300 DPI or higher.
- File Size: Higher DPI values generally result in larger file sizes.
In summary, change the resolution (DPI) in Affinity Designer via the "Resize Document" option, ensuring "Resample" is off to only adjust the intended print size without affecting the pixel dimensions of your design.
