From psycho to Frankenstein, watch scenes from the director's 10 favorite creepy classics. Wes Craven's Favorite Scary Movies Wes Craven October 30, 2014 Revisit that horrid 1997 psycho redo, or the misguided ABC miniseries version of The Shining that came out the same year.
And for black-and-white images, particularly of text or drawings, TIFF's Group 4 fax compression or the JBIG format are often far better than 1-bit grayscale PNG.) Like GIF and TIFF, PNG is a raster format, which is to say, it represents an image as a two-dimensional array of colored dots (pixels). PNG is explicitly not a vector format, i.e., one that can store shapes (lines, boxes, ellipses, etc.) and be scaled arbitrarily without any loss of quality (generally speaking).
Be careful not to rename the extension on .png files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another. A file extension is the set of three or four characters at the end of a filename; in this case, .png. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically.