One common issue while sending emails is when they keep bouncing back. The non-delivery report mentions the error as the presence of an illegal attachment. This ...

Portable Document Format or PDF files are documents that have been converted from printable source material, such as Microsoft Word or Excel files. PDF documents may be color or grayscale. PDF files ...

The bitmap image format is supported by the default Gallery app included with Android, so Android devices should have no difficulties displaying files of this type. To reduce the amount of room the ...