PPTX to JPG Converter
Convert .PPTX into .JPG Files - Fast, Free and Secure. We also have information of .PPTX and .JPG Files extensions on this page.
| - Information about PPTX |
| File extension |
| pptx |
| File category |
| Document file |
| Stands for |
| PowerPoint open XML Presentation |
| Developer |
| Microsoft |
| Overview |
| PPTX is a Microsoft PowerPoint 2007, Open XML Presentation file which is similar to its predecessor that is PPT. It is an open-source file under XML that is why it can be opened easily in other types of presentation programs. It can have a number of slides which can be used to present the ideas or to deliver lectures at all the platforms. For instance- In business meetings, academic classrooms and other market applications. As earlier versions of Microsoft PowerPoint do not support open version that is why it was launched in 2007 with open standards to cope up with the competition in the market. The slides in this can store images, content, graphs, tables, audio, video, graphics and animations; etc. Other software that supports it include OpenOffice Impress and Apple Keynote. |
| Technical description |
| The data that is stored in PPTX is compressed with ZIP compression technique and is reserved in separate files and folders. ECMA-376 standard is used by these files for Office Open XML. The directory is zipped together to create this file and the information in it matches the OPC (Open Platform Communications) structure. A user if wants to make his presentation absolutely attractive to the audience can add custom settings to the text and other content on the slides. Animation effects can be added to the entry, appearance and exit of the text. There is one option of the slideshow and it actually tells how the slides will appear when lecture is to be delivered using the presentation. It will include all the animated effects that the user has applied. |
| Links |
| wikipedia.org |
| - Information about JPG |
| File extension |
| jpg |
| File category |
| Raster Image |
| Stands for |
| Joint photographic experts group |
| Developer |
| The JPEG group |
| Overview |
| Files stored in this format are small in size that is why they can be uploaded and downloaded with ease. It takes less time over the internet to upload and download due to smaller size which results in saving of bandwidth. This extension is compressed using a lossy algorithm that is why there can be a reduction in the quality of the photograph. It has the ability to compress the file to one-tenth of its original size. It is widely used in emails and also when images are to be posted on websites. Digital Cameras and other photographic image capture devices widely use this JPG format. The paintings and photos of realistic scenes that have smooth variations of colour can be best illustrated by this format. |
| Technical description |
| A technique used in JPEG format to compress files is lossy compression which is based on DCT (Discrete Cosine Transform) as it is the most practical Mathematical operation. The DCT actually converts each frame of the video from the spatial domain to a frequency/transform domain. It discards the information of high frequency that has sharp transitions in intensity as well as in colour hue. Furthermore, this standard defines a codec which tells how an image can be encoded into a stream of bytes and decoded back into an image. The files can be compressed in the ratio of 100:1 but that would result in the poor quality of an image. Therefore, to retain the quality of a photo, a file should be compressed till 20:1 ratio not more than that. |
| Links |
| wikipedia.org |
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