Yes, partially. PDF encodes fonts and EPS graphics that are vector based. It also encodes images, in JPG format for example, which are raster based.
Vector does not lose quality when resized, which is ideal for logos.
One possible categorization is in raster images and vector images.
Vector graphics refers to a type of graphics that stores color information as well as the paths (curves and shapes) rather than using pixels to store image information (raster graphics). This means that it will retain image quality better than raster graphics, no matter how you scale it (enlarge or shrink) when it comes to designing logos, line art, and other 2D imagery. The most common file type for vector graphics is Scalable Vector Graphics (SVG). In programming, a vector is a scalable array (a type of array that can be resized). For example, strings in C++ would be a vector of characters/bytes.
There are a few. Vector graphics are more "scalable" than raster graphics. By this, I mean you can draw a design that's six inches high, enlarge it to four feet high, and still have it look sharp. If you did that with a Photoshop file, the picture would become extremely jagged. Vector graphics' filesizes are smaller than raster graphics' filesizes. If I were to build a 12-inch square item at 60dpi, which is my standard resolution (you can get away with that if you're printing things that are to be viewed at a distance), and I did it in Photoshop, the file would be about 2MB. In Illustrator, it would be less than half that. I have a customer who gets pickups wrapped; I can do a whole pickup truck side in Illustrator in less than 20MB. That won't happen in Photoshop. Vector graphics tend to print faster than raster graphics do, and the prints are cleaner looking.
Adobe Illustrator creates graphics that are vector based and it deals well with text. It also has the ability to rasterize graphics and create PDF files.
raster
Illustrator is a vector based program that can export raster images.
Photoshop is raster based but you can work with vector objects in Photoshop. Why is raster based is question for founder Mr. Thomas Knoll not for public because we can not answer this question. Maybe because this world need raster based software.
Raster.
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Method 1: Add PDF OLEClick "Insert" on toolbar of AutoCAD and choose "OLE Object…"Select "Create New" and from the list of object type choose "Adobe Acrobat Document"From the file selection dialogue box, find your PDF and open it in AutoCAD to insert as OLEMethod 2: Raster image XREFTo add a raster image XREF, you need to get the image of the PDF file. If it is a raster PDF, things will be much easier and you just need to copy the whole raster image from the PDF and copy it into Windows Paint. Save the image and use it. If it is not a raster PDF and all the lines in the PDF file are vector lines, you can find ways to convert the whole drawing into images. For example, use your "Print Screen" button on keyboard.When you get the image of the PDF page, click "Insert" on toolbar of AutoCAD and choose "Raster Image Reference…"Find the image file and load it into AutoCADSpecify the settings and it is now referencedMethod 3: PDF XREF in AutoCAD 2010For users who are using AutoCAD 2010, they can directly add PDF XREF.Click "Insert" on toolbar of AutoCAD and choose "PDF Reference…"Locate the PDF and add it into AutoCADSpecify the settings and it is now referenced* Method 4: Import PDF into AutoCADTo import PDF into AutoCAD, you need a 3rd party importer or converter. Please refer to the recommended links blow.In general, there are three major categories that should be addressed in the following order:AutoCAD pluginThis is an application which relies on AutoCAD ARXObject and users need to install a full version of AutoCAD. It is because AutoCAD LT is not featured with ARX Object Enabler. AutoDWG PDFin is recommended.PDF to DWG converterThere are five key features of PDF to DWG Converter: (1) conver PDF to DWG (2) convert any parts of PDF files. (3) High quality and accurate (4) two versions: AutoCAD add-in version & Stand alone version (5) easy to useRaster PDF to DWG converter (raster to vector)Converters which converts raster PDF into editable DWG uses various of technologies to get raster into vector. Normally a converter traces lines in the PDF and draw lines into DWG. Output quality of DWG/DXF from raster to vector depends on the quality of the original PDF for resolution, page size, clearance, color depth, etc. AutoDWG converter is recommended.
raster image = monitor, laser printer or ink-jet printer vector image = graphics plotter
Raster and Vector
Vector does not lose quality when resized, which is ideal for logos.
Rasterisation is the progressive scanning of an image in a line by line fashion. TV and computer displays are scanned left to right line by line and so are raster displays. Vectorisation or vector graphics are the opposite of rasterisation. In this method of display the image is drawn in a point to point method. An oscilloscope is an example of a vector display. Raster graphics have the advantage of having the same refresh rate all the time irrespective of the complexity and colour depth of the image drawn (this is not the same as the framerate). All home computers now use a raster display output. Vector graphics can be coloured but are line drawings only. Examples of this type of colour vector display is the 1980's game Starwars or the monochrome Vectrex games consol from the same period.
Vector and Raster or pixel images.
You have to use programs which support vector graphics and raster graphics, so you can save them in what format you would like? ex: Adobe Illustrator, CorelDraw you can use...