How many pixels are in a digital paper collection?
Multiply width by height to find pixels per paper, then multiply by the number of papers. One 3600x3600 paper contains 12,960,000 pixels, or 12.96 megapixels. A 20-paper collection at that size contains 259.2 megapixels in total.
Why actual file and download sizes vary
For a simple theoretical baseline, 8-bit RGB image data uses three bytes per pixel: one byte for each red, green, and blue channel. This calculation excludes metadata, color profiles, extra channels, and archive overhead.
Actual file sizes depend on the image and export settings. Dimensions alone cannot predict the download size. Check the product page and its platform instructions for the actual files and any archive parts.
JPEG compression is lossy. PNG compression is lossless, and PNG can support transparency, though a PNG does not always contain transparency.
Example: a 20-paper 12x12 collection
| Pixels per paper | 3600 × 3600 = 12.96 MP |
|---|---|
| Total pixel count | 259.2 MP |
| Print size per paper | 12 × 12 in at 300 PPI |
| Raw image data (not download size): theoretical 8-bit RGB | 777,600,000 bytes (about 741.6 MiB) |
| Actual file and download size | Unknown from dimensions; check the product page and files |
Frequently asked questions
Does a larger file always print better?
No. Pixel dimensions and source quality matter more than file size alone. A poorly enlarged image can occupy many megabytes without containing true extra detail.
How much free storage do I need?
Leave enough room for the actual downloaded archives, extracted files, and any working copies you plan to keep. Their sizes depend on the product contents; dimensions alone do not establish a storage minimum.
Where are complete ScrapBujo collections downloaded?
The checkout and delivery route depends on the product page and its platform instructions. Check the specific listing for where to purchase and how to access its files.
