# Saving in photoshop
**URL:** https://forum.kirupa.com/t/saving-in-photoshop/183761
**Category:** Uncategorized
**Created:** [March 29, 2006, 9:03pm UTC](https://forum.kirupa.com/t/saving-in-photoshop/183761 "2006-03-29T21:03:56Z")
**Posts on this page:** 7
**Page:** 2
### Author:  [@sharada](https://forum.kirupa.com/u/sharada)
#### Post date: [March 30, 2006, 5:11am UTC](https://forum.kirupa.com/t/saving-in-photoshop/183761/21 "2006-03-30T05:11:53Z")
> [@kydee6039](#):
>
> I understand your computer is new and “powerful” but people usually don’t set large format files up the way your going about it. This piece is only 8x10 - imagine a boillboard that is 100’x50’ - then what?? If you set up the file at full size - 150ppi - you will be fine.
okay, now it’s making some sense into me. thanks a lot. so, if i set it up at 150 in photoshop it’s 150ppi and translates to half of that to dpi right?
when i use images from [istockphoto.com](http://istockphoto.com), should i buy only the ones with 150 res or 300 res? sorry for all my questions, i am just so confused with this last minute tension.
sharada
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### Author:  [@kydee6039](https://forum.kirupa.com/u/kydee6039)
#### Post date: [March 30, 2006, 5:34am UTC](https://forum.kirupa.com/t/saving-in-photoshop/183761/22 "2006-03-30T05:34:41Z")
You should buy the 300dpi images - then your set. You could even set the res at 100ppi in photoshop.
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### Author:  [@sharada](https://forum.kirupa.com/u/sharada)
#### Post date: [March 30, 2006, 5:49am UTC](https://forum.kirupa.com/t/saving-in-photoshop/183761/23 "2006-03-30T05:49:18Z")
> [@kydee6039](#):
>
> You should buy the 300dpi images - then your set. You could even set the res at 100ppi in photoshop.
okay. thanks much once again for all your inputs. meet you here again in the forum.
sharada
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### Author:  [@CanisMajor](https://forum.kirupa.com/u/CanisMajor)
#### Post date: [March 30, 2006, 6:08am UTC](https://forum.kirupa.com/t/saving-in-photoshop/183761/24 "2006-03-30T06:08:35Z")
Which version of PS are you using?
I have CS2 and I just saved a file in .psd at 8" x 10" @ 250 ppi and I had no problems.
But when I increased it to 300 ppi a warning came up and said the file will not be compatible with older versions of PS.
I am really interested in this so please post your findings.
ps. I know you know this, but I have to say it anyway. Remember to save a copy of your high res images before decreasing them.
.
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### Author:  [@sharada](https://forum.kirupa.com/u/sharada)
#### Post date: [March 30, 2006, 2:14pm UTC](https://forum.kirupa.com/t/saving-in-photoshop/183761/25 "2006-03-30T14:14:27Z")
> [@CanisMajor](#):
>
> Which version of PS are you using?
>
> I have CS2 and I just saved a file in .psd at 8" x 10" @ 250 ppi and I had no problems.
>
> But when I increased it to 300 ppi a warning came up and said the file will not be compatible with older versions of PS.
>
> I am really interested in this so please post your findings.
>
> ps. I know you know this, but I have to say it anyway. Remember to save a copy of your high res images before decreasing them.
>
> .
Hi friend.
i am still using photoshop 7. it works for me in 200ppi, i get this message only if i try it out in 300ppi. i have not tried 250. hopefully i am able to finish it without further problem. will definitely keep you posted. yes, i am aware of saving the original image files before decreasing the size. thanks much for you prompt replies. i swear i did’nt have a problem a year back using the same version-the mural size etc… were the same and my old pc was bearly able to get this job done. anyway, i have to start this project today otherwise i will never get it done by the deadline. i am also awaiting a reply from our printing regarding the dpi ppi thing. thanks once again.
sharada
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### Author:  [@CanisMajor](https://forum.kirupa.com/u/CanisMajor)
#### Post date: [March 30, 2006, 4:34pm UTC](https://forum.kirupa.com/t/saving-in-photoshop/183761/26 "2006-03-30T16:34:25Z")
That is strange that were able to do it on the older system but not on the newer system.
But I do know that PS 7 does not support Large Document Format (PSB). PS 7 has a limit of 2gb but CS and CS2 goes higher with PSB (300,000 pixels). Also, TIFF goes up to 4gb.
Those dimensions at 300ppi takes you just over 2gb so that would explain the error message.
I would try it at a resolution between 200 and 250 (which should be plenty). I like 225 because that is what my home printer prints at. Plus that puts you in the right ballpark with most Print Shops.
I highly recommend CS2, even though it is costly it is worth it.
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### Author:  [@sharada](https://forum.kirupa.com/u/sharada)
#### Post date: [March 30, 2006, 5:11pm UTC](https://forum.kirupa.com/t/saving-in-photoshop/183761/27 "2006-03-30T17:11:53Z")
> [@CanisMajor](#):
>
> That is strange that were able to do it on the older system but not on the newer system.
>
> But I do know that PS 7 does not support Large Document Format (PSB). PS 7 has a limit of 2gb but CS and CS2 goes higher with PSB (300,000 pixels). Also, TIFF goes up to 4gb.
>
> Those dimensions at 300ppi takes you just over 2gb so that would explain the error message.
>
> I would try it at a resolution between 200 and 250 (which should be plenty). I like 225 because that is what my home printer prints at. Plus that puts you in the right ballpark with most Print Shops.
>
> I highly recommend CS2, even though it is costly it is worth it.
okay. thanks for your help!
sharada
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