PSD (PhotoShop Document) is the standard format for Adobe Photoshop software.
PSD is an acronym that can come from various expressions. In the field of computing , it refers to PhotoShop Document : that is, PhotoShop Document .
The standard format of the Adobe Photoshop program is known as PSD . The extension of this type of files is .psd .
The Adobe Photoshop program
It should be remembered that Adobe Photoshop is software created by the American company Adobe Inc. , formerly known as Adobe Systems Incorporated . It is a tool for editing raster graphics that is often used when retouching photographs.
We say that Photoshop works with raster graphics, and this means that the files it produces and operates with contain two-dimensional image information stored as a list of pixels created or edited directly by the user. This is opposed to vector graphics , which are created by storing Cartesian coordinates that are joined together by mathematical algorithms, so that the user does not create all the content but the points and the degree of curvature (which can be null). between one and the other.
Although this program specializes in raster graphics, it includes tools for creating vectors, which can be stored and reused. Many artists scan their creations and, with the help of Photoshop, vectorize their outlines to give them a completely solid appearance, but then take advantage of some of the thousands of brushes and pencils available to color them. All this can be saved in several layers and without any compression in a PSD file.
Adobe Photoshop doesn't just work with PSD documents . It also allows you to edit other types of images such as JPG , GIF , PNG and BMP . Likewise, it gives us the option of working with PDF documents, although with certain limitations.
PSD in the political sphere
In the field of politics , meanwhile, we can find different groups identified with this acronym that recognize themselves as part of the Democratic Socialist Party or the Social Democratic Party . One of them is the Social Democratic Party ( PSD ) of Brazil , founded in 2011 by Gilberto Kassab and other leaders.
Several PSDs have already ceased to exist. In Argentina , the Democratic Socialist Party ( PSD ) emerged in 1959 after a split in the Socialist Party and was in force until 2002 , when the Socialist Party was reunified. Chile also had a Democratic Socialist Party ( PSD ) between 1959 and 1960 , developed from dissidents in the Socialist Party .
Other uses of the acronym
PSD , on the other hand, can refer to Power Spectral Density (or, in our language, Power Spectral Density ). This mathematical function reflects how the power of a signal is distributed in the various frequencies of which it is composed. It can be used if the average power of the signal is finite, that is, it is greater than 0 but less than infinity; In this case, its average energy will be infinite.
The acronym PSD can refer to a person with a disability.
This concept belongs to the realms of physics and mathematics, as well as its companion ESD ( Energy Spectral Density ). As you can imagine, one or the other is used depending on the way in which we define the signal on which we must work. It is worth mentioning that it is not uncommon to find the interchangeable use of "signal spectrum " and "spectral density", although they have different meanings.
Finally, the person with a disability is mentioned as PSD . This is the name given to an individual who has certain physical or mental conditions and who suffers from problems when encountering environmental or contextual barriers that make their active participation in society difficult.