Hi John, JPEG is good for photographed images (of real objects). If you have drawings with few colors and strong contrasts the JPEG format is not the best choice. GIF and sub formats of TIFF are suitable for such graphics (produced by computer software) because they conserve the bits of the image despite of compression. If you find a way to export your Delta CAD drawings into GIF you should encounter very small file sizes (if the export is well programmed) without any compression artifacts. Anyway PDF can combine both types of images.
Regards - - Daniel John Carmichael <[EMAIL PROTECTED]> schrieb am 01.03.2002, 02:11:25: > Hi All > > I often email drawings and pictures of sundials to clients and people on > this list. But I always have to be careful not to send too many at once, or > my email will reject my mail for being too large. To email photographs, I > use JPEG format. And to send Delta Cad drawings I scanned the drawing and > send it as a JPEG. I had always thought that JPEGs where the best format to > use for emailing because the files are small and everybody can open them. > > It occurred to me to compare the file size of a typical JPEG photo to the > same photo in PDF format (I thought for sure the PDF would be the larger). > To my amazement, the PDF file was 20% of the size of the JPEG! The JPEG was > 240 KBs. and the PDF was only 46 KBs. This allows me to quickly email more > pictures on my crummy 56K modem. > > As for emailing Delta Cad drawings, now I don't have to scan them and send > as JPEGs. I can save and send these as PDFs too, and the quality is much > better than a scanned JPEG. > > Perhaps PDFs will replace JPEGs as the photo format of choice in the future. > What do you think? > > John > > John L. Carmichael Jr. > Sundial Sculptures > 925 E. Foothills Dr. > Tucson Arizona 85718 > USA > > Tel: 520-696-1709 > Email: [EMAIL PROTECTED] > Website: > > > - -
