Basics:
Firstly, I imported a photo that i have taken from my documents. I went to “open” then found the photo where i saved it in my “photos” folder. Next i used the cropping tool to crop my photo, my aim was to crop the sides so there was less of the background and more of the model.

Next, i used the same cropping tool to resize my photo. I did this by going up to the tool bars at the top and where it says the width and height i changed them both to 300 to create a square. The reason i wanted to create a square was because squares are often used in social media posts especially Instagram.

Then, i chose to make the basic change of changing the contrast and brightness on the adjustments panel. I did this by going to image >adjustments > then brightness/contrast. The reason i chose this adjustment was because of the colours and contrast in the photo it would make a positive difference.

I then saved the photo as a JPEG into my documents. Below is the outcome of the before and after difference after the few steps.
File Types
PPI-
Our computer monitor displays images at 72 pixels per inch. This means that our 3.8 megapixel image is going to measure about 32 inches by 24 inches when viewed on a monitor. You can determine the display size of the image by dividing the horizontal and vertical pixels by 72. In this case, 2272 / 72 = 31.6 and 1704 / 72 = 23.7. It’s good to use the 72ppi standard when you want to post an image to the Internet.
The difference between the PPI on a monitor and on a printer is that when printing your computer needs to use more PPI pixels per inch to produce a high- quality image.If you print a photo at 100ppi it’s not going to look like a professional print, you will be able to see the grain and fuzziness of the photograph.
File Formats-
JPG (Joint Photographic Experts Group)- JPEGS are usually the most used format on the web. This is because, they are known for their ‘lossy’ compression, meaning that the quality of the image decreases as the file size decreases. You can use Jpegs for projects on the web, Microsoft office documents, printing at high resolution etc. They are also very quick and easy to use, as they open straight away.
PNGs (Potable Network Graphics)- PNGs are great for interactive documents such as web pages, but are not really suitable for print. While PNGs are “lossless”, meaning you can edit them and not lose quality, they are still low resolution. PNGs are used for a lot of web projects because you can save your image with more colours on a transparent background, which makes a lot sharper quality image.
TIF (Tagged image File)- TIFs are usually used for the bigger formats such as photographs, when saving them for a print as it doesn’t loose its quality. If you were to use this format on the web it would take forever to load.
GIF (Graphics Interchange Format)- GIFs are most commonly know for their animated form which are used on a lot of web pages such as tumblr or banner ads. GIFs are formed from up to 256 colours in the RGB colourspace. Due to the limited number of colours, the file size increases drastically.
The difference between CMYK and RGB is that RGB color is used for digital communications, like television or websites and CMYK is used for stuff made for print, like brochures. RGB stands for the colours red, green, and blue, the colors widely recognized in design fields as the primary colors. CMYK, on the other hand, stands for the colors cyan, magenta, yellow, and black. CMYK, on the other hand, stands for the colors cyan, magenta, yellow, and black.
AdobeRGB-

The image above explains how AdobeRGB works pretty well. Both images, only contain 3 colours, however the colours shown on the AdobeRGB scaled have more of a difference between them all. This means photos taken in the AdobeRGB colour space will have more vibrancy in their colours compared to others. This is really good when editing images for the web because websites will want those bright vibrant colours in their work. It also keeps the realism within the photograph, by having the strong tones come out not only on a camera but in the image itself on the computer.
Colour Depth (8bit GIF vs 24bit JPEG)-
Colour depth, also known as bit depth, is either the number of bits used to indicate the colour of a single pixel, A ‘bit’ is a computer term for data storage. The selection of colour depth will have a huge outcome on the final edit of an image.
JPEG graphics can be saved at 24-bit colour depth, allowing for a much richer mix of colours than 8-bit GIFs. If the viewer’s monitor is set to 24-bit colour, they will see the full range of color data. If the viewer’s monitor is set to 8-bit color, however, the JPEG image will be dithered to the 8-bit colour range.

You can save and compress images easily on the web by using the ‘save for web’ option as opposed to using the “save as”. This means when you save an optimized file using the Save For Web & Devices command, you can choose to generate an HTML file for the image. This file contains all the necessary information to display your image in a web browser.
Premier Basics- File Types
Size to upload to the web- normally 25/50 frames per second file size, which is a typical frame rate.
Typical frame dimensions of a typical video-10/80 frames per second. It effects file size because the lower the resolution is, it decreases the quality of the video.
What is Bitrate?
The number of bits per second that can be transmitted along a digital network.

When compressing a HD video (where the original is 1920 x 1080 pixels) If you choose 10,000 kbit/s your file-size will be about 775 MB.
Audio
The quality of audio depends on the bitrate and sample rate together. The bigger the bitrate, the bigger the sample rate will be which means the audio will be even clearer.
As technology improves 96 kHz and even 192 kHz sample rates are becoming common. These lower sample rates are used strictly for multimedia files. 32 kHz is generally used with 12-bit audio on DV.
The compression settings for file formats when exporting video/ audio for websites are best in the format- MPEG/ H.264.