Use a higher-resolution source image
Rescan or reshoot the image at a higher DPI or megapixel count
Crop less to preserve more pixels
Upscale with AI image enhancement tools
Use super-resolution software
Sharpen the image carefully after upscaling
Reduce noise before sharpening
Adjust contrast and clarity to improve perceived detail
Save in a lossless format such as PNG or TIFF
Avoid repeated compression and re-saving as JPEG
Use proper lens focus and stable camera settings when capturing
Improve lighting during capture
Use a tripod or image stabilization
Export at the highest quality settings available
Match the output size to the intended use
Remove blur with deblurring tools when possible
Start from the original file instead of a screenshot or compressed copy