imagemagick
I am familiar with convert -resize % for decreasing a size by percentage but what is the command to increase an image from say 700 pixels to 800 pixels? Horizontal width should resize, too. I need to preserve the overall quality and look of the image as best as possible.
EDIT:
mogrify -resize geometry
that appears to be what I need to resize the images. Link to article for the next person trying to figure out how to resize.
Try using extent instead like this:
$ convert puma1.png -gravity center \
-background white \
-compress jpeg \
-extent 1755x2475 puma1.pdf
Your gravatar.
And the resulting PDF file.
$ convert 453f11e81477e1e0334962ee262b3bcd.png -gravity center \
-background white \
-extent 500x500 \
-compress jpeg 453f11e81477e1e0334962ee262b3bcd.pdf
You could use the utility program pdfnup from the pdfjam suite.
pdfnup in.pdf --nup 3x3
should output the file in-nup.pdf with the pages of in.pdf arranged in a series of pages with a 3x3 matrix from the origin pdf.
You should merge all of you pdf files in an only one, also you must want to specify a paper size for the output file, see the pdfjam docs fot the details.
Best Answer
or
would do the resizing. As for controlling the image quality, you might want to check the
-filterand-supportoptions.