Why their is need to convert one signal into other and one file format into other?

Converter is a tool with which we can convert one type to another type.
In computers, we change file formats from one to another so it is called file converter. Other is change a one type of signal into another signal then it is called conversion of signal.
Digital to Analog:- Digital to Analog conversion is used in modems because telephone accept analog signals but computer accepts only digital signals. If we want to connect phone line to the computer for Internet or fax then firstly modem device accepts the analog signal and it will change it to digital signal because computer understand only digital signal. Modem is a modulator and demodulator technique which is used to change the type of signal. When we connect a phone line to modem then modem performs its function to change the signal from analog to digital.
Audio to mp3:- Audio is a quality format and it will take a more space as compare to mp3. In general Audio CD in which we can save only 8 maximum songs or more but in Mp3 format where we can save 15 albums means 150 songs or more. CD size is same where we store these two Audio and MP3. But the difference is only in the quality. Audio is a better quality format in which digital audio sound is saved in CD but mp3 format is a compressed format. Its quality is not really very good. So, here we have many converters to convert one format into other like audio to mp3 and mp3 to audio.
Pdf to word :- It is also a file format conversion process where we convert one file format into other file format. If we download a file from Internet and moreover files are available in pdf format because it is a portable format and easy to use and secure but we can not change its content as we can not edit pdf files. So, these are advantages of pdf and that's why we change PDF to word, excel, postscript formats so that we can edit the content or text. If we want to retrieve an image from it, we also use image file formats to store. So, we change pdf to jpg, bmp and other image formats.
Video to audio :- Video formats are dat, avi so we can convert these to audio or mp3 format. After conversion it retrieve sound from video file and save it to an audio format which one we want to save .mp3, .wave etc.

What is JPEG file format?

Joint photographic expert group. It is a commonly used methodology compression for photographic image. JPEG compression is used in number of image file systems. It is basically used in Photographic cameras and other photographic image devices. It is the main file format to save a file on the world wide web. The name JPEG stands for Joint picture expert group. For more clarity JPEG is used because it is best for photographs and paintings of realistic image and true colors.
On other hand it is not suitable for iconic and line drawing where sharp contrast between adjacent and pixel noticeable artifact. Its compression method is lossy means some portion of its picture information will be lost .
Loss less:- Their are number of alternates to view a picture losslessly as long as its size is multiple 1mcu(multiple coded unit).
Size:- Blocks can be loaded in 90 degree increment flipped in horizontal vertical and diagonal axis moved about the image.
Cropping:- The top left boundary is lie on the block of boundary for cropping image but Bottom right portion of image need not do so. So, the Right image portion is not come in block boundary but rest of area will be in boundary and it will be crop by user .
Its file extension is .jpeg and .jpg. Dos supports Jpg extension and Other windows supports .jpeg. It also supports RGB colors Red Blue Green.

How to Open the PDF Files or Documents?

PDF files is a simple Internet file format in which PDF stands for Portable Document Format. PDF provides us with electronic distribution of the documents because it preserves the original document fonts, colours, images, and layout. The original file lookup is same in PDF format. The other advantage of using PDF file formats is that it can be used and viewed on different types of computers. The one can easily used PDF format for different types of browsers also. You will find the use of PDF in government publications, leaflets and forms.
To open a PDF file user can use two methods:-
1. Go go the website adobe.com and download the program called Acrobat Reader. Install it on your system. It takes time because the size of the program is between 8MB – 16 MB. You will find the same copy of the program on one of the CDs distributed by computer magazines.
2. The other method is to use online PDF conversion tools. The one can go for different online tools which are now available on the Internet. You can try Quick PDF to word as one of the tools for the PDF documents.

Later on, if you find that you will need pdf to word and word to PDF document conversion then with the same Quick PDF to Word you can do this. For more information, you can even download its free trial from the website www.quickpdftoword.com.

How you can view PDF Documents in Web Browser?

Sometimes it might possible with the user that we will not be able to view our PDF files in web browser with the help of Adobe Reader.
Here I discussed some of the points which helps you in viewing PDF Documents or files:-
1. Save to your Desktop:- One method to view PDF files is to right click on the PDF and then select save target as option. Save your PDF file on the Desktop and choose Adobe Acrobat Document as the file type. Now you can view the PDF file in Adobe Reader by selecting option open file. Also you can view PDF documents by double click on the PDF file which is saved on the desktop.
2. Repair Adobe Reader:- There are two methods to repair Adobe Reader first is in Adobe Reader you can choose help option and then select Repair Adobe Reader Installation. Second, in Windows you can go to control panel and then double click on add/remove programs. Click on Adobe Reader item and then select change option their and by further following instructions you can repair your Adobe Reader application.
3. Enable Internet Explorer add-on:- Open Internet Explorer and select tools and then Internet Options and further go to Programs and then Manage Add-ons. Set show to Add-ons that have been used by Internet Explorer and select Adobe PDF Reader. Enable Adobe Reader Option.

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