For a photograph, you should be concerned with PPI (Pixels Per Inch)
The larger the number of PPI the better quality print.
Why does it cost more?
Saving an image at 1200 ppi takes longer than at 600 ppi because the higher resolution results in a larger file, which requires more time to process, transfer, and save. This is because a 1200 ppi image contains four times the data of a 600 ppi image.
Standard save is 600 ppi.....if you are requesting 1200 ppi please contact us
Here is the difference between 300, 600, and 1200 PPI (or DPI, as it's often labeled on scanners) in terms of the detail captured, file size, and typical uses:
Resolution (PPI/DPI)
Detail and Quality
File Size & Scan Time
Typical Use Case
300
Standard quality. Sufficient for most general-purpose prints when viewed from a normal distance.
Smallest file size. Fastest scan time.
Standard-size photo prints (e.g., 4"x6", 5"x7"). Documents or images for web/email sharing.
600
Good quality. Captures significantly more detail, allowing for good quality when the image is enlarged.
Larger file size (about 4x the file size of a 300 PPI scan). Slower scan time.
Enlarging prints (e.g., doubling a 4"x6" to an 8"x12" print). Archiving photo prints for future-proofing. Detailed restoration work.
1200
Highest practical quality for photo prints. Captures maximum detail for significant enlargement.
Much larger file size (about 16x the file size of a 300 PPI scan). Slowest scan time.
Extreme enlargements (e.g., from a small section of a photo). Scanning film, slides, or negatives (which require very high resolution to look good when printed).
Export to Sheets
Key Takeaways
Higher Number = More Detail: A higher PPI/DPI captures more pixels (data) per inch, resulting in a more detailed digital image.
The Law of Diminishing Returns: For scanning an ordinary photo print, 600 PPI is often the recommended maximum for archiving, as 1200 PPI usually doesn't capture significantly more actual detail from the print itself, but it dramatically increases the file size and scan time.
Print Size Matters: The main reason to scan at a higher resolution (like 600 or 1200 PPI) is if you intend to enlarge the image during printing. If you scan a 4x6 photo at 600 PPI, you can print it as an 8x12 and it will still have a good print resolution (300 PPI).