File formats
- 2. + File Formats The extension at the end of a file name may not be important when using files on your local computer but they are important when naming files to be placed on a web server. The Web server will look at the extension name of the file and add to the HTTP request the type of file that is being sent so the browser knows how to handle that file type. Example a file with .php at the end may not display properly when you open the file of link to it locally on your own hard drive. Where as the file will be processed differently if you were to surf to the file
- 3. + Local Development Formats Some file formats are not supported in web browsers. These are usually formats that are proprietary to individual software manufacturers or are too complex in how to interpret the output. Illustrator and Photoshop formats are good examples of formats that a web browser will not display.
- 4. + Common Browser Formats for Text HTML XML SVG Text JSON
- 5. + Common Browser Formats for Images SVG BMP JPG PNG GIF
- 6. + Common Modes for Images RGB Grayscale Indexed Black and White
- 7. + Common Resolution for Images 72 ppi For mobile sites the images are sometimes made twice as large to reflect the quality desired with Retina screens. Do not upload images other than 72 ppi, especially 300 ppi images or ones made in inches.
- 8. + CODECs vs FORMATS CODECs do the saving of the file and how they are compressed. Formats are the wrapper around the data and represent the file
- 9. + Common Browser Formats for Sound WAVE MP3 MP4 Ogg WebM FLAC
- 10. + Common Browser Formats for Video AVI FLV MP4 MOV WMV
- 11. + Common Browser CODECs for Video Theora H.264(MP4) HEVC(MP4) VP8(WebM) VP9(WebM)