Understanding Image Attributes
Let’s break down the key terms that define image quality:
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Resolution: This refers to the number of pixels within a given area on your screen, typically measured in width by height (e.g., 1920 x 1080 pixels). A higher pixel count translates to a sharper, more detailed image.
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DPI (Dots Per Inch): DPI indicates the number of printed dots contained within one inch of space. A higher DPI results in a higher-quality print with enhanced sharpness and detail.
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Actual Size: This term speaks for itself – it’s the real-world size of your image. For instance, a 5”x5” design at 100 dpi, when scaled up to 10”x10”, would result in a 50 dpi image. Enlarging the design without increasing the pixel count decreases the resolution.
Understanding Image Resolution
Measured in pixels per inch (PPI), a higher PPI translates to a greater concentration of pixels, resulting in finer details and improved overall quality. When an image has low resolution, it may appear blurry or pixelated, particularly when displayed at larger sizes.
Resolution Guidelines
To ensure your images are displayed with optimal clarity, we recommend adhering to the following guidelines:
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Ideal Resolution: Aim for an image resolution of 300 PPI whenever possible. This resolution provides the best balance between image quality and file size.
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Minimum Resolution: As a general rule, maintain a minimum resolution of 150 PPI for your images. While images within the 100-150 PPI range might be acceptable if they visually appear sharp and free from pixelation, it’s crucial to exercise judgment and prioritize clarity.
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Critical Resolution Issues: Images with resolutions below 100 PPI are deemed critically low and will likely result in noticeable blurriness and pixelation. In such instances, replacing the image with a higher-resolution alternative is strongly recommended.
By following these resolution guidelines, you can ensure your images are displayed at their best, enhancing the overall visual appeal and professionalism of your content.
Print-Ready File Specifications
Learn the key requirements for uploading print-ready PDF files to Gelato, including bleed, trim, and safe area guidelines.
This article is applicable only if you are trying to upload PDF print-ready files. You can also upload your design to Gelato as an image using our
For Gelato to offer consistent quality, we have identified a group of print machine settings that we are rolling out to all our print partners – we call it the “Gelato standard”. Regularly, our print partners calibrate their machines with these Gelato settings. Furthermore, for our platform to make the smallest amount of color transformations and ensure your files are printed as intended, we require that you follow the guidelines below.
File requirements
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Files should be exported as PDF/X-4 which supports both sRGB & CMYK objects, with output intent set to GRACoL 2006.
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For posters and non-paper products, it is recommended to use sRGB images to ensure the most vibrant output is achieved.
For fluorescent (neon) colors, it is better to use CMYK, as normal sRGB will not come out as expected. -
For small-format digital printing, such as brochures and business stationery, we recommend using CMYK image files.
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Fonts should be embedded or converted to outlines. For the best print output, we recommend using a minimum of a 7-point font.
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We require a 4 mm bleed area to be provided on all sides. The safe area should start at least 4 mm (12 mm only on the binding side for Wire-O bound products) from the trim line to ensure that text and graphics are not cut off
Why is my image blurry or pixelated?
Troubleshooting Blurry Images
If the uploaded file appears blurry when printed, it’s likely due to the original file being blurry. Blurriness isn’t always easy to notice. You can check by zooming in on the image. If the image becomes exceedingly fuzzy, it means it’s not sharp enough.
The best option, in this case, would be to replace the image with a clearer one.
Troubleshooting Pixelated Images
Always ensure that you select the highest resolution versions of an image you have.
The preview may look pixelated, even though your original file is sharp. This can happen when an image is zoomed in. In this case, please use a different image or make sure that the image looks good even after you zoom it in 3x.
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