PPT to PNG
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| - Information about PPT |
| Id |
| 30 |
| File extension |
| ppt |
| File category |
| Document file |
| Stands for |
| Microsoft PowerPoint presentation file |
| Developer |
| Microsoft |
| Overview |
| Originally, Robert Gaskins and Dennis Austin of Forethought, Inc. created this file format to make presentations using PowerPoint. Later on, Microsoft acquired this and now it is one of the components of Microsoft Office suite. These PPT presentations include a number of slides, where the content has images, texts with varied font style and size, hyperlinks, audio, video, charts, tables and graphs; etc. We can also apply different themes and animation effects to the text as well as to the images. This in result, can make the presentation interesting instead of dull and boring. One can bring variations to the text, that is how it enters, appears and leaves the screen. Earlier it was meant only for businesses, but now, it is widely used at every platform to showcase the knowledge or ideas effectively. |
| Technical description |
| PPT consists of a number of slides which are just like different pages of a notebook. There are in-built templates which can be used to add text with titles or subtitles and images at various places. For example – there is one template for comparing the things. Therefore, two things can be compared by just adding the text. There is no need to add extra centre line to make comparison. Besides this, there comes one master slide. This slide is used to provide overall design to the presentation and it indicates how other slides should appear and work. One can also take the print to review the document. When Microsoft Office 2007 came into existence, PPTX replaced it as this new extension was based on open XML format. |
| Links |
| wikipedia.org |
| - Information about PNG |
| Id |
| 37 |
| File extension |
| png |
| File category |
| Raster image file |
| Stands for |
| Portable Network Graphics |
| Developer |
| PNG development Group(Donated to World wide web Consortium/ W3C) |
| Overview |
| These files are commonly termed as ‘ping' and they store the raster files using lossless compression. It came into existence in order to replace the GIF file format as they both have the ability to show transparent backgrounds. Furthermore, it was an enhanced and improved version of Graphics Interchange format. It supports different types of photos. The first one is palette-based photographs that can either have palettes of 24-bit RGB or 32-bit RGBA colours. Second is grayscale images which may or may not have an alpha channel for transparency. Lastly, there is a full-colour non-palette which is based on RGB/RGBA pictures. There is one limitation of this type. It does not support animation like GIF. Besides this, it is non-patented which means there are no copyright limitations. |
| Technical description |
| The expanded features like 8- bit channel for transparency and 24- bit RGB support make PNG more popular. The files stores in this format allow the fading of colours from opaque to transparent which is not present in the preceding format. CMYK does not offer support to this extension as it was developed for transferring of files over the internet, not for professional-quality print graphics. It stores information like textual comments, integrity checks and encoded basic pixels in its extensible structure of chunks. It always starts with an 8-byte signature followed by a series of chunks. A chunk furthermore comprises of four parts- length (4 bytes), chunk type (4 bytes), chunk data (length bytes) and CRC- Cyclic redundancy checksum or code (4 bytes). |
| Links |
| wikipedia.org |
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