What does 'image resolution/dpi' mean?

All digital artwork is made up of square pixels (dots). The more dots per inch, the better the image looks. When digital artwork is below 300dpi (dots per inch) it may look less clear once printed. However, large format printing (A3 and above) can be printed at around 160dpi. 

Take the example below. The image of the text on the left-hand side is saved at 300dpi and the text on the right is saved at 72dpi. Both images are scaled to the same height and width. As you can see, the left-hand image is much clearer whilst the image on the right is pixelated.

Image saved at 300dpi	Image saved at 72dpi

How can I check the image resolution?

1. Zoom into your artwork so it is at about 400%: This will give you a better idea of how the artwork will appear when printed, however, it's not a perfect science. Be sure to check all the images in your document as some may be a lower resolution than others.
2. Let us check it for you: Here at StressFreePrint we check all artwork before it goes to print. If we find any resolution issues we will let you know. We'll even check your artwork for free before you make a purchase!

How can I fix image resolution?

1. Create your artwork at the printing size: You should always try to create your document at the size you intend to print. Please be aware that you cannot increase the resolution of an image by making it bigger. An image created at A5 will lose resolution if scaled to A4. 
2. Save your document as a high-resolution PDF: For best results, you should always use a high-resolution save format such as 'Print-ready PDF'. 
3. Replace any low-resolution images
4. Print the document anyway: We would not advise printing a document at less than 300dpi, but if you're happy to go to print anyway, just let us know!

Other articles relevant to this query: 

What are your artwork supply guidelines?

Will you check my artwork before printing it?

Do you offer a design service?