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vespa-lad

vespa-lad

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Name
brett
Edit My Images
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hello all im trying to upload some pictures ive taken but it says exceeds filesize limit what do i do so i can post the pictures ? cheers brett
 
resize them to about 600 x800 pixels - if you haven't got photoshop there are various freebie and web based options, you can even do it in MS paint

incidentally when I say resize "them" I mean a duplicate file - don't resize your only original !
 
If you have flicker upload them at full resolution.

Then on flicker select picture go to share > bb board and pick the lower resolution it will create a link you can embed into the post
 
to be honest it doesn't matter what DPI you use - a photo that's 800 pixels on the long side is going to be 800x600 whether its at 72 dpi or 3000
 
big soft moose said:
to be honest it doesn't matter what DPI you use - a photo that's 800 pixels on the long side is going to be 800x600 whether its at 72 dpi or 3000
Click to expand...

Obviously, its to stop anyone being able to save the images and use then nothing to do with the size
 
barratt1988 said:
Obviously, its to stop anyone being able to save the images and use then nothing to do with the size
Click to expand...

but its still irrelevant

an image that's uploaded at 800 x 600 has the same number of pixels in it regardless of the DPI

so one uploaded at that size at 600 DPI is no more useful to a pirate than one uploaded at 72 DPI

it is the pixel dimensions that limit the usefulness not what resolution you choose to upload at

(dpi does become an issue when you upload at set dimension in unit of measurement - like if a website needs all its pictures to be 8cm by 6cm - but that isn't the case here)
 
@ Phil

The DPI doesn't really mean a thing it is just a number.
What matters is the pixel dimensions when it comes to printing and your really do not need a lot of them for smaller prints.
(edit posted as the previous post was being written)
 
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RichardTaylor said:
@ Phil

The DPI doesn't really mean a thing it is just a number.
What matters is the pixel dimensions when it comes to printing and your really do not need a lot of them for smaller prints.
(edit posted as the previous post was being written)
Click to expand...

I disagree entirely but fine
 
its a common misconception - all the DPI controls is how big an 800x600 (or any other size) is printed at,.

the lower the DPI the bigger you can print it but the more pixelated it will look

but theres exactly the same ammount of information in a 800x600 file at 72 dpi as there is in a 800x600 file at 600 dpi - ie 480,000 pixels so you can set the dpi to any resolution you desire after download so saving it at 72 dpi does precisely b****r all to protect it from misuse - that protection is provided by the fact that there are only 480,000 pixels to play with (so anything over about 6x4 is going to look nasty)
 
barratt1988 said:
I disagree entirely but fine
Click to expand...

Disagree all you want, you're still wrong...

10ppi.jpg


3000ppi.jpg


One image is 10 dpi. The other is 3000 dpi.
 
dpi only has any importance when it comes to output to print. The more pixels in your image, the larger you can print. Using the Image>Image size dialog box in PS you can calculate 'roughly' how big you can print before you get to too low a dpi. As a rule, 200-300 dpi is 'good' for quality prints. 72dpi is standard for viewing on a computer. Of course, printing really large, you can often get away with a lower dpi simply because people don't look close up at the picture. Confusing, huh?
 
Photodiva said:
72dpi is standard for viewing on a computer.
Click to expand...

Er, no. Not since the last century.

Back in the bad old days a lot of graphics gurus were used to using Macintosh computers (before the name got truncated in the name of trendiness). Old Macintoshes had monochrome monitors that were used for Desktop Publishing. In old-fashioned paper publishing things were measured in points (we still talk of 12point type). 12-point type was 1/6 of an inch, so there were 72 points in one inch. So the Macintosh guys designed their monitor to have one dot per point - or 72dots per inch! So the exif standard of 72dpi was based on a monochrome monitor from around 30 years ago!

Today monitor resolution is much higher; I'm using around 144dpi. But you'll still find people saying that the standard resolution for a monitor is 72dpi, and that images saved for the web need to be saved at 72dpi. They are wrong.

As you can see in post #12, dpi value makes absolutely no difference to the way an image appears on the computer. Only if you're using a page-layout program might it come into play.
 
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Go to Photoshop, open your images and save them in smaller version as you need. This is typically done by pressing ctrl+s and then choose what size you would it to be saved. Hope this helps.
 
barratt1988 said:
Right if you say so. Pointless having dpi then is it?
Click to expand...

How wide (in inches) is a digital file?

Because a digital file had no physical dimension the setting is meaningless. I can print your file (800 pixels long, 300 nominal DPI) at any DPI I choose to. And there's nothing in your setting that will stop me. The *only* thing that limits what I can do with it is the 800 pixel dimension. The size I choose to print at is what governs the DPI.

Don't worry about it though, I suspect most people on the forum don't understand it either. Ratios are a maths thing, that like percentages, people think they get until they find them hidden in everyday concepts.
 
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