https://www.shutterstock.com/blog/dpi-vs-ppi
A higher DPI means more dots are printed per inch, resulting in a higher quality, more detailed print. DPI is important when it comes to printing because it can affect the clarity and sharpness of the final output. On the other hand, PPI refers to the number of pixels that are present per inch in a digital image.

https://progradedigital.com/understanding-image-resolution-in-photography-a-guide-to-sharper-shots/
8×10 inches - Ideal DPI: 300 (Minimum resolution: 2400×3000 pixels) Posters (24×36 inches) - Ideal DPI: 200-300 (Minimum resolution: 4800×7200 pixels) Banners - a DPI of 100-150 is usually sufficient, depending on the size and viewing distance. Billboards - Because these are viewed from a significant distance, a DPI of 50-100 can be

https://www.youtube.com/watch?v=Xp9RXIQx_Ok
Resolution, DPI, PPI, Megapixels, High-Res Shots - there is a big misunderstanding on all of these terms and in this video I'll break it all down for you so

https://www.photoworkout.com/print-resolution/
Then divide each of these numbers by your desired PPI count-which, as explained above, is often 300 PPI. So, 6000 pixels divided by 300 PPI gives you 20 inches. And 4000 pixels divided by 300 PPI gives you 13.3 inches. Which means that a 6000 x 4000 pixel image, sized to 300 PPI, will make a beautiful 13.3 x 20 print.

https://digital-photography-school.com/understand-pixels-resolution-resize-photoshop/
The first kind of resolution refers to the pixel count which is the number of pixels that form your photo. In order to calculate this resolution you just use the same formula you would use for the area of any rectangle; multiply the length by the height. For example, if you have a photo that has 4,500 pixels on the horizontal side, and 3,000 on

https://photographylife.com/dpi-vs-ppi
PPI describes the resolution of a digital image, not a print. PPI is used to resize images in preparation for printing. To understand this, we also need to understand what a pixel is. A pixel, or picture element, is the smallest building block used to create an image on a screen. Pixels are square and arranged on a grid.

https://www.adobe.com/uk/creativecloud/photography/discover/pixels-per-inch-ppi-resolution.html
Pixels per inch (PPI) refers to the number of pixels contained within each inch of a digital image. It also refers to the set number of pixels a screen can display. Generally speaking, the higher the PPI, the better the image quality. Lower resolution images contain larger pixels in fewer numbers. This creates a blocky, granular effect

https://www.fotor.com/blog/image-resolution/
This measurement is often described as pixels per inch (PPI). A higher resolution means more pixels are present in an image, and it results in higher image quality. Low-Resolution vs High-Resolution. Higher resolutions mean that there more pixels per inch (PPI) in a image. In this case, your image can be high-quality and vivid.

https://phoenixphotolab.com/news/dpi-vs-ppi-what-you-need-to-know-about-image-resolution/
DPI stands for "dots per inch," and PPI stands for "pixels per inch.". Essentially, they are cousins related to the quality and sharpness of images, but they work their magic in slightly different domains. DPI: Diving Into The Print World. Imagine you are preparing to print your photograph. DPI steps onto the scene.

https://www.shutterstock.com/blog/ppi-vs-dpi-resolution-guide
As the resolution in PPI decreases, the image size and dimensions decrease with it. Notice how the Image Size panel switches over to measuring in pixels, a measurement reserved for online and web images. At 300 PPI, this image starts out at 5000 x 3407 pixels, but when resampled to 72 PPI, the altered image will be smaller at 1200 x 818 pixels.

https://www.creativebloq.com/graphic-design/what-is-dpi-image-resolution-71515673
An A3 photographic image may look fine with a resolution of 150dpi. When it comes to digital, people are often under the impression that the resolution should be set to 72dpi, but this is only a legacy value and it is image dimensions that are more important, because you are fitting a grid of pixels (your image) into a grid of pixels (the screen).

https://www.adobe.com/uk/creativecloud/photography/discover/high-resolution.html
A high-resolution JPEG is an image that is typically 300 DPI (dots per inch) or higher. While its file size may be larger, it can be ideal for those wanting to save a photograph or art piece and retain detail and quality. However, if it needs to be compressed for online use, it will likely lose some of this quality.

https://askleo.com/how-pixels-dpi-resolution-picture-size-and-file-size-all-relate/
Print pixel-per-pixel. The image that takes up roughly 3.3 × 1.8 inches on your 75 DPI screen would get printed at 0.8 × 0.5 inches on the 300 DPI printer. The printer packs the pixels in much tighter, so the 250 × 141 pixel image takes up less printed space.

https://photographylife.com/camera-resolution-explained
1) Camera Resolution: What it Affects. In digital photography, camera resolution is associated with a number of different factors: Print Size - usually the most important factor. Basically, the more resolution, the larger the potential print size. Printing from digital images is accomplished by squeezing a certain number of Pixels Per Inch (PPI).

https://guides.lib.umich.edu/c.php?g=282942&p=1885350
Resolution. Image resolution is typically described in PPI, which refers to how many pixels are displayed per inch of an image. Higher resolutions mean that there more pixels per inch (PPI), resulting in more pixel information and creating a high-quality, crisp image. Images with lower resolutions have fewer pixels, and if those few pixels are

https://shotkit.com/dpi-vs-ppi/
Understanding the difference between DPI and PPI is key to photographers or anyone who needs to print out a digital photo. ... you can send to the printer a 300 PPI photo - which is a high-resolution photo. Then, the printer can have a higher DPI setting, let's say 600, to improve the quality. ... 600 DPI means more dots per inch - hence

https://blog.stocksnap.io/understanding-image-resolution-for-digital-and-print/
Pixels: The tiny squares that make up a digital image. Resolution: The number of pixels within a specific area. DPI vs. PPI: DPI (dots per inch) is often confused with PPI but relates to printing. PPI is the resolution of the display. Why It Matters? High-resolution images offer more detail, clarity, and flexibility. They can be edited and

https://clippingpanda.com/understanding-image-resolution/
DPI (Dot Per Inch) describes the amount of ink dots on a printed image. On the other hand, PPI (Pixels Per Inch) describes the resolution in a digital image's pixels. PPI mainly refers to the digital display, but it also affects the print size of your design. There is nothing DPI can do digitally. Its only concern is print.

https://www.slrlounge.com/ppi-vs-dpi/
The Difference Between PPI and DPI. Here's the quick and simple answer to this question: "P" stands for Pixels, "D" stands for Dots. So, it's Pixels Per Inch and Dots Per Inch. Pixels are electronic "dots" of light on a digital display screen, and Dots are individual dots of ink in a printed image. Either way, PPI and DPI are

https://www.prodigitalweb.com/dpi-vs-ppi-explained/
Go to the "Image" menu and select "Print Size.". You can see the current image dimensions and resolution (PPI) in the Print Size dialog box. Adjusting DPI/PPI Settings: To adjust the PPI, simply change the value in the "X resolution" and "Y resolution " fields.

https://www.organizingphotos.net/image-resolution-pixel-dpi-ppi/
PPI (Pixels Per Inch) is the resolution defined by the number of pixels contained in one inch of an image file, so printing at 300 DPI will equal 300 x 300 = 90,000 dot per square inch. For a good quality print photo in professional standards, 300 PPI is the minimum. You can easily calculate the maximum print size for your photo by dividing

https://blogs.loc.gov/thesignal/2013/07/you-say-you-want-a-resolution-how-many-dpippi-is-too-much/
We often try to scan film - particularly 35mm film - at a resolution necessary to provide a final print at 300 dpi. So if you want a common 4″ x 6″ print you need a true resolution of 1200 ppi. Specialized film scanners and high quality camera setups can achieve this. Commonly available consumer flatbed scanners cannot.

https://community.adobe.com/havfw69955/attachments/havfw69955/indesign/519658/1/UnderstandingResolution.pdf
determine that you need an image resolution of 300 ppi, you can scan at a maximum of 800% (300 ppi x 8.00 = 2400 ppi). If your scanner lists an optical resolution of 4800 x 2400, use the smaller number for your calculations. If you determine that you only need 266 for your images, scan at a "native" resolution ppi of your scanner.