How to quickly convert the format of pictures in batches on an Apple computer. Apple Computer's preview program can realize the interchange between PNG, JPEG, JPEG-2000, PDF, and TIFF formats. Here we take converting PNG format to JPEG format as an example.
Tools/Materials
Imac、Macbook Pro、Macbook Air
method/step
Open the storage location of the picture, and drag the mouse to select the picture to be edited.
Right-click the mouse, and click the "Open" command in the pop-up shortcut menu. The system defaults to open these pictures with the preview program.
» In the "Preview" program, click the "Display" icon in the upper left corner, and select "Thumbnail" in the drop-down list;
» In the thumbnail view, press the key combination 『Command＋A』 to select all the pictures.
On the File menu, click Export Selected Images.
In the pop-up window, select the storage address for export, and select the format of the exported image (such as: JPEG format).
Select JPEG format, quality: drag the slider on the right, the more to the right, the better the quality of the picture, after the selection is complete, click the "Select" button.
(If you choose PDF format, you can change the Quartz filter format and set document encryption.)
After the system operation is completed, you can see the pictures exported by the system with changed format.
