homepage Welcome to WebmasterWorld Guest from 107.20.34.144
register, free tools, login, search, pro membership, help, library, announcements, recent posts, open posts,
Become a Pro Member

Home / Forums Index / Code, Content, and Presentation / Site Graphics and Multimedia Design
Forum Library, Charter, Moderators: not2easy

Site Graphics and Multimedia Design Forum

    
Image to 300 DPI
NeedScripts

WebmasterWorld Senior Member 10+ Year Member



 
Msg#: 405 posted 12:05 am on Aug 4, 2002 (gmt 0)

I am not a *pro* at graphics designing and was wondering that if I can get an expert suggestion.

I am having a .png image but when I am wanting to upload it for printing, it gives me following message
==========
Your image can not be stretched to fit the entire document without significantly reducing the quality of your image. Images should be created at 300 DPI for best quality.
==========

If anyone can tell me how do I change the DPI of existing .png image to 300 DPI, it would be appreciated.

Thank you.

 

NeedScripts

WebmasterWorld Senior Member 10+ Year Member



 
Msg#: 405 posted 12:20 am on Aug 4, 2002 (gmt 0)

Problem solved.

Thanks for looking. :)

kingkelly

10+ Year Member



 
Msg#: 405 posted 3:54 am on Aug 4, 2002 (gmt 0)

Mind telling me how? Could you just up the resolution in Photoshop?

tedster

WebmasterWorld Senior Member tedster us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 405 posted 4:16 am on Aug 4, 2002 (gmt 0)

From my experience, the best solution is to go back to a source file, instead of using the file you've already scrunched down for the web. Outside of that, trying to take a lo-res image and make it higher-res is a tough call.

If it's a photo, you may be totally out of luck because the needed information is just not there, and I have yet to see an interpolation algorithm with results that are easy on the eye.

However, if it's a design/illustration, you may be able to do some scaling-up tricks by converting the rasterized (pixel) shapes to vector curves (paths) which are resolution independent. Then scale to the needed size, go back to pixels and tweak any rough spots.

Nothing very automated here. But with lots of hand-eye work and good judgement calls, you can sometimes get very good results.

kingkelly

10+ Year Member



 
Msg#: 405 posted 7:42 pm on Aug 4, 2002 (gmt 0)

Ya I would just have to put the design image on one layer and trace over top of it in a vector program.... But if its a photo, im still screwed...

idiotgirl

10+ Year Member



 
Msg#: 405 posted 9:02 pm on Aug 4, 2002 (gmt 0)

Vector images can be resized pretty easily if you have the right program. That's the beauty of a vector image. But photographs pose an entirely different problem.

I learned the hard way that if there's even the most remote chance a photograph might be used both for the web and for print the best thing to do is scan it at high resolution (huge) and do all my comps from there. I generally save my original scan as a .PSD and go from there. That's what big hard drives, lots of memory, and CD writers are for:) It might mean you have the same image saved at varying dpi's, various sizes, and different formats - but you'll always have the best quality available to work from that way and won't get caught flat-footed should you need to use the same image for more than one purpose.

Taking a 72 or 96dpi image, cutting and pasting into Photoshop, and bumping up the resolution seldom gives very good results on detailed photographs. I've done it a couple of times and ended up airbrushing, re-saturating color, blah blah... all the time wondering why I hadn't just "done it right" the first time. It turns into a Sisteen Chapel project you grow to dread like the plague. (ditto tedster)

Safety first. High res (photographic) scans. All of the time.

NeedScripts

WebmasterWorld Senior Member 10+ Year Member



 
Msg#: 405 posted 11:13 pm on Aug 4, 2002 (gmt 0)

Well I don't understand much about graphics, however, I will for sure tell you what I did :)

I am using Fireworks [I kinda like it]. I just clicked on "modiy" => "Canvas" => "Image Size" and in Image Size options, change the "Resolution" to whatever you want and choose pixel/cm or pixel/inches as per your preference.

It did changed the size of the viewable image on the computer screen, but when you print it, it prints in the original size.

Hope this help. :)

Global Options:
 top home search open messages active posts  
 

Home / Forums Index / Code, Content, and Presentation / Site Graphics and Multimedia Design
rss feed

All trademarks and copyrights held by respective owners. Member comments are owned by the poster.
Home ¦ Free Tools ¦ Terms of Service ¦ Privacy Policy ¦ Report Problem ¦ About ¦ Library ¦ Newsletter
WebmasterWorld is a Developer Shed Community owned by Jim Boykin.
© Webmaster World 1996-2014 all rights reserved