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Re: Resizing pictures

Title: Re: [GWL]: Resizing pictures


On 3/19/02 Linda Schaffner wrote:

Garden writers and especially photographers,

Can anyone tell me what 4"x3" would be in pixels?  I am trying to send an article plus pictures to my publisher.  After reinstalling digital camera software, resizing in PIXELS is the only option offered. ??  Pictures are currently at 1280x960 pixels

Linda -

This may help you with your problem.  Your publisher is asking you to send files which will fit their workflow without telling you everything. If your images are 1280 x 960, they are ready to print 4" by 3" size-wise. Resizing and resolution refer to how much detail is contained in an inch long row of individual units of color. (More is better, but file size gets larger with higher resolutions and may be a problem with transmission, storage, etc..)

DPI refers to dots per inch on an inkjet printer, PPI is pixels per inch on a monitor, and LPI refers to screen lines per inch on a printing press. If your printer will print the publication at 150 LPI, which is common, or up to 250 LPI or more for a high quality "coffee table book," you are more than covered.

You can do the math -- it's really just math. Your image at 1280 x 960 pixels per inch can make photo quality prints on a 300 DPI ink jet printer and produce a print a little larger than 4" x 3."  To be exact, 1280 divided by 300 will be 4.2666" and 960 divided by 300 is 3.2", so you can print an excellent 4" by 3" with your existing file. So, the final output of the image determines the resolution needed for a certain size file. All that is to say again, your file is large enough for excellent output by any means.

Your jpegs may be created in the camera and saved at 72DPI and a large print size. If you have Photoshop or similar photo editing software, you can resize the images yourself to a resolution of 300DPI and 4" x 3" size. If not, your decision to send them as is is probably OK.

Most likely your publisher's pre-press department will have to resize the images for the finished pages, and all images will have to be converted to CMYK tif files from the RGB jpeg files before going into production. But that's another class in itself.

I hope this helps. If I can be of additional help, reply off-list and I'll see what I can do.
      --
Larry Maupin
Maupin Photography
Garden Writer/Photographer
Member GWAA
larrymaupin@sbcglobal.net
214/341-3933

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