I?ve spent three days trying to resolve the following.
Basically, I need to create an image with at least 400 dpi which is 181 mm by 55 mm in size.
When I do File > New and specify these dimensions, the canvas size created by Paint Shop Pro is FAR larger than 181 mm by 55 mm. When I do View > Normal Viewing (1:1) it is about five screen lengths wide!
When I reduce the number of pixels per centimetre/inch in File > New, the canvas size is correct.
Surely the resolution should not affect the canvas size of the image?
Anyway, the printers say I must have at least 400 dpi for the image as it is for offline printing.
Why is the canvas size coming out to far larger than I specify in File > New ? How do I get a correct canvas of the correct dimensions with a resolution of at least 400 dpi?
Any advice would be much appreciated. I?ve used Paint Shop Pro for years, but this issue is killing me?
Thank you, thank you, thank you!
This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.
Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.
If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.
Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.
Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.
Access the answers to your technology questions today.
30-day free trial. Register in 60 seconds.
Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.
Try it out and discover for yourself.
30-day free trial. Register in 60 seconds.
Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.
"At 100% zoom you see ALL the pixels at their native size"
Getting the pic. in its proper size now shows me how it will look when it is printed out - and it's not good. See:
http://64.176.72.84/needst
I've tried various effects in Paint Shop Pro to enhance the photograph, but to no avail.
Is there any way of smoothening it, so I can get rid of those grid-like lines other than by rescanning the picture?
Thanks :)
Agree with johnbrewer...
weed's comment that a monitor cannot display more than 72 pixels per inch is not true. A pixel is a logical unit not a physical one. He is talking about 'points', which are 1/72nd of an inch. If a pixel were 1/72nd of an inch, then increasing your display size from 800x600 to 1600x1200 would increase the size of your monitor!!!!!!
PPI and Dimension are independant. If you create a 1"x1" canvas in photoshop at 72 dpi with your monitor set to 800x600 you will have a larger canvas than if your monitor is set to 1024x748 because your computer has to cram a larger number of pixels into a finite sized monitor. But your computer still knows that your canvas is 1"x1" and there are still 72 pixels across your canvas and 72 pixels down. Hence 72 dpi. Youve made the assumption that an inch on your ruler is the same as an inch on your monitor which is incorrect. Your computer knows the difference.
What you are describing is the implementation of a solution to the monitor problem by the developer of an image-editing app. You cannot say that an inch on a ruler is different to an inch on a monitor. An inch is an inch!!! What you are referring to is scaling. This is what occurs on all display devices. There are not 72 pixels per inch. Period. There are 72 points per inch.
There is a difference between a logical unit of measurement (a pixel) to a physical one (an inch). This is what johnbrewer1980 is referring to, I think....
like I sed ... the size of the image on the screen is unimportant, you can zoom and pan it to your hearts content ... what is important is that you have the correct number of pixels accross, so that when the printer prints at 400 dpi the image is 181 mm wide. As far as the image quality is concerned ... you should allways try and scan at a higher resolution (the higher the better) and then, soften the image, then IMAGE>RESIZE to the size u want. You should also try and give the image to the printer as a .BMP, because the .JPG fromat results in quality deterioration. Yes, I know its a substantialy larger file so decide if u want to make the tradeoff (maybe u should take the image to the printer on a disk (R/W CD) ... discuss it with the printer, some are happy to accept a .JPG. ... others aren't.
weed,
I'm not misunderstanding dpi, ppi etc. I'm just pointing out that it is not true that a pixel is 1/72nd of an inch and that it is also untrue that a monitor can display only 72 pixels per inch. The physical size of a pixel on your monitor is governed solely by your display mode. At 100%, one pixel in an image will map to one pixel on your screen. Therefore, if you had two images on the same canvas size, the one with more dpi will look larger on-screen. However, they would be the same size on a printer...
I can appreciate that you are trying to help out litmania but my correction is designed to be helpful also. It is not intended to undermine anybody...
Youve got it backwards. If you have two images on the same size canvas with different DPI, they will look IDENTICAL on screen at %100 but the one with the higher DPI will look smaller when viewed at print size. However when viewing at print size youre NOT seeing all the pixels because a monitor doesnt have enough pixels to display it. If you try it youll see how it works. If you take a canvas of 3,000x3,000 at a dpi of 1200 and view it at print size your canvas isnt showing 3,000x3,000 pixels at 1200 DPI beause your screen cant show 1200 dpi. Its merely giving you a PREVIEW of the size it will print at by scaling the canvas down. When viewing any canvas on your screen the DPI is irrelevant until you preview its print size. Youll notice it merely changes the zoom level to show the preview and unless youre viewing at %99 or less youre not seeing all the pixels. What youre trying to tell us is that the monitor changes its DPI so that even at %10 a canvas would be displaying all the pixels in the image.
Now, if you have two images, on the same canvas size they will both be the same size on the monitor at %100, at %50 etc etc. The one with the higher DPI will be smaller when previewed at print size but wont display as many pixels on the screen. When printed the image with the higher DPI will print smaller. Again, TRY it and youll quickly understand how it works.
Right, though you could figure it out by doing a little math and zooming out to the appropriate %. Thats really all Photoshop's print preview does but it does the math for you. Not that it matters in this case. All litmania needs to know is that viewing at %100 isnt the size its going to print at. Since Paint Shop doesnt have the option you could use the print preview function of your printer driver to get an accurate preview of the print size.
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.
I will leave the following recommendation for this question in the Cleanup topic area:
Split Points between: cybermike3d and weed
Any objections should be posted here in the next 4 days. After that time, the question will be closed.
Lobo
EE Cleanup Volunteer
Business Accounts
Answer for Membership
by: cybermike3dPosted on 2001-06-20 at 14:39:32ID: 6212282
A picture that is 400 dpi and 181 mm wide is inherrently about 3000 pixels wide. There is no getting around that one. The only thing to do is zoom down to about 1/4 size and work at that level The image on the screen will then be 750 pixels wide and u can work on it. There is no relationship between the screen size and the printing size ... don't worry about it.