Larger 440 KB PDF for the 2N7002, tagged Sam in the name, which likely refers to the issuing manufacturer, though the file does not spell it out. It sits in the schematic category but is a component datasheet for the well-known small-signal N-channel MOSFET. Compared with the smaller copies in the collection, this version may include more curves or package drawings. Use it to verify pins, ratings and marking, and cross-check against another vendor sheet before substituting.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @cyberlanelectonik. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.