invert pdf colors
Posted: 18 Jun 2009, 12:34
hey guys,
new to the forums, i think it's a great idea as it's getting hard to sort through all the great ideas & comments on the instructables page.
i'd like to be able to invert the colors of pdfs..i find i prefer to read with light text on black. I know adobe reader has a 'high contrast' option...the problem with that is it doesn't work with all pdfs, but also because it doesn't actually edit the pdf itself..so if i open the pdf in 'pdf annotator', the pdf is back to black on white.
I haven't come across a specific program that does this. But, starting from a pdf, it seems the simple solution is to use a program to convert it to an image files, then batch edit the images to create 'negatives' & then convert back from image to pdf. (of course, if scanning your own..then you're already at the image step).
The reason i pose this question here is, I'd like to hear people's opinions on which software would work (preferably free). I did manage to do this using PDFill to convert from pdf to image & then 'fastone photo resizer' to batch edit the images & then PDFill to convert back to pdf. However, this only worked once. I've had trouble getting PDFill to convert other pdf files i have (often it'll only convert the first page to an image).
The other reason i pose it here is, i understand the page builder software is made by the people involved with this DIY (right?). I know nothing about programming, but I wonder if it's possible to add a feature that will also batch process your images into a negative (white text on black) as an option during the post editing steps.
thanks very much!
new to the forums, i think it's a great idea as it's getting hard to sort through all the great ideas & comments on the instructables page.
i'd like to be able to invert the colors of pdfs..i find i prefer to read with light text on black. I know adobe reader has a 'high contrast' option...the problem with that is it doesn't work with all pdfs, but also because it doesn't actually edit the pdf itself..so if i open the pdf in 'pdf annotator', the pdf is back to black on white.
I haven't come across a specific program that does this. But, starting from a pdf, it seems the simple solution is to use a program to convert it to an image files, then batch edit the images to create 'negatives' & then convert back from image to pdf. (of course, if scanning your own..then you're already at the image step).
The reason i pose this question here is, I'd like to hear people's opinions on which software would work (preferably free). I did manage to do this using PDFill to convert from pdf to image & then 'fastone photo resizer' to batch edit the images & then PDFill to convert back to pdf. However, this only worked once. I've had trouble getting PDFill to convert other pdf files i have (often it'll only convert the first page to an image).
The other reason i pose it here is, i understand the page builder software is made by the people involved with this DIY (right?). I know nothing about programming, but I wonder if it's possible to add a feature that will also batch process your images into a negative (white text on black) as an option during the post editing steps.
thanks very much!