To ensure your photos have good enough quality for printing on your wedding thank you cards, consider the following:
Resolution: Check the resolution of your images. A resolution of 300 dpi (dots per inch) is generally considered good for printing. Lower resolution images might appear pixelated or blurry when printed.
File Size: Large file sizes usually indicate higher image quality. Images that are just a few kilobytes (KB) might not be high quality. Files in megabytes (MB) are typically higher resolution.
Preview: As a general rule of thumb, if you are happy with the resolution on screen, then you will be happy with how they print. In other words, if the image looks clear and sharp on screen, it should print well.
Remember, it's important that your photos look good to you. If you're happy with the image on your screen, you'll likely be satisfied with the printed product.