Enlarging images for offset printing

Hi guys,
some images I have to include to the project has insuficient size {sometimes less than half {125 DPI instead of 300}. What's your opinion when considering the best way to enlarge them. Should I just place them to ID and without any pardons export the final PDF or is better to enlarge each one manually? I am just curious to hear your experiences.
Thank you

MikeWenzloff wrote:
The DPI doesn't matter much. What does matter is the pixel dimensions. Resizing upwards in ID will make the images fuzzy. More fuzzy the larger you increase their on-page size.
So if the images are being sized downwards after placing them, the effective DPI increases. Sized larger and the effective DPI is decreased.
If it at all matters, there are two reasonable options. One costs, does a little better job: a plug-in for Photoshop. The other is free: Smilla Image Enlarger. Smilla will do a pretty decent job as long as you are beginning with a quality image and are not unduly sizing upwards.
Either way, you would do so on each image. That is unless you are beginning with images that can be resized exacly the same amount without changing the WxH ratio. Then Smilla can process a queue.
Take care, Mike
Thank you Mike,
sorry, I was not clear enough — I was talking about Effective DPI. Thank you for your time!..

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Is there a way to change an image for a print version?
My background is dark blue and my image is white, however if
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That'd be nice. But you misplaced a decimal in the amount. It
needs to
move right! 8)
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
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"DC_Eric" <[email protected]> wrote in message
news:es7659$rhn$[email protected]..
> Based off what you said I came up with another idea.
>
> I set the current image not to display and then in the
div I set a
> background
> image, height, and width
>
> then when you go to print the page the display none is
removed and the
> foreground image shows again which is now the print
version image.
>
> I didn' set any blocks or anything but this seems to
work.
>
> Thanks so much Murray. We should all chip in $0.25 each
time you help one
> of
> us. Then you can retire and just support the forums :)
>

How I can work points to an image in Illustrator for Screen Printing?

Hello, (I use Macromedia Freehand MX), I just recently download the trial illustrator, and my question is to know how to open points in Illustrator images for screen printing in freehand using the Halftone in Illustrator I've tried but is not the same as the finish is different and of very poor quality here is a sample as freehand and illustrator as stated in:
Look at the difference of points:
As you can see in Illustrator can only do that from the menu: Effects / Pixelate / Color Halftone... and you can not make the points more guys, not sharp as seen in the picture above and therefore the image does not get to see very well, while in freehand if you can manipulate the points from large fine to a point, points also can be made round, linear or ellipse and therefore may work better for screenprints and other designs that open nesecitan points at home.
What I'm interested to know if there is another way to work so that the image is sharp with the open items as well as in freehand.
No more I say goodbye to waiting for an answer, thanks

I still do not achieve the required result in Freehand give me the points, as you may see in the picture above, I need is to manipulate fine points as well as this:
illustrator and only managed this:
illustrator and only managed this:
As you can see the difference is very remarkable, the two images are worked in the same size.
I switch to illustrator but if I can achieve that result does not help me much, since I work in screen printing and printing and need to play with points, after that I love the program has many more things freehand.
PS: the freehand halftone used to make color separation images to full color with spots open in Illustrator is not like that.

Enlarging images for offset printing

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