Editing Picture Transfer Protocol (section)

==Operating system support==
[[Microsoft Windows]] has supported PTP from [[Windows ME]] onwards (excluding [[Windows CE]]). [[Microsoft]] implements PTP on Windows through [[Windows Image Acquisition]].<ref>{{cite web
 | url = http://msdn2.microsoft.com/en-us/library/ms630343.aspx
 | title = About Windows Image Acquisition
 | publisher = [[Microsoft]]
 | work = [[Microsoft Developer Network|MSDN]]
 | accessdate = 2009-01-05
}}</ref><ref>{{cite web
 | url = http://www.microsoft.com/whdc/device/stillimage/stillimg-connect.mspx#EXC
 | title = Still image connectivity for Windows
 | publisher = [[Microsoft]]
 | date = December 4, 2001
 | accessdate = 2009-01-05
}}</ref>  A disadvantage of PTP on Windows as compared to USB mass storage is that Windows does not assign [[drive letter assignment|drive letters]] to PTP devices, so image files on them cannot be manipulated by scripts or standard Windows programs, only by Windows Explorer or applications with specially written PTP support.  Also, Windows Explorer does not display file modification timestamps (though these are available via the file Properties popup).

PTP on [[Linux]] and other [[Free software|free]] and [[Open-source software|open-source]] operating systems is supported by a number of libraries, such as [[gPhoto|libgphoto]] and [http://sourceforge.net/projects/libptp/ libptp], used by applications such as [[digiKam]] and [[F-Spot]].{{Citation needed|date=April 2016}} As on Microsoft Windows there is no native support on Linux, but by means of [[GVfs]] the devices can easily be mounted and made available to applications that use standard [[POSIX]] commands and library functions.

[[Android (operating system)|Android]] supports PTP, so that software programs that support grabbing photos from a digital camera will support grabbing photos from an Android phone when you select the PTP mode.<ref>{{Cite web |title=Learn Everything's - USB Connections: MTP, PTP, and USB Mass Storage |url=https://sites.google.com/site/learneverythings/android/usb-connections-mtp-ptp-and-usb-mass-storage |access-date=2023-12-23 |website=sites.google.com |language=en-US}}</ref>  As with [[Media Transfer Protocol|MTP]], a limitation is that when transferring photos from a computer to the Android device, file timestamps are replaced with the time of the copy.  For copies from the Android device to a computer however, the timestamps are preserved.