Imagemagik Change an images dpi from 400 to 72

Posted by rhousham on Stack Overflow See other posts from Stack Overflow or by rhousham
Published on 2010-04-07T09:58:36Z Indexed on 2010/04/07 10:03 UTC
Read the original article Hit count: 217

Filed under:

imagemagick

|

DPI

|

changing

I have an image on my server which I know the dpi of and if it's too high I want to size it down to 72 I still want to keep the same height and width of the image. Any ideas?

I've played around with -resample -units and -density but don't seem to be getting anywhere and can't find any answers. Anyone out there that can help

© Stack Overflow or respective owner

Related posts about imagemagick

Can't seem to install imagick

as seen on Server Fault - Search for 'Server Fault'
I'm trying to install the PHP PEAR PECL extension "imagick" (image magick), but failing horribly. It seems that I keed installing packages to progress, but this one has me stumped. It seems to fail all the way at the bottom. Please Note: I'm using ArchLinux, apt-get doesn't save me. [root@Crux… >>> More
difference between compiled and installed via rpm (zypper)

as seen on Server Fault - Search for 'Server Fault'
In an openSUSE 11.1 I download, compile and install ImageMagick via: wget ftp://.../pub/graphics/ImageMagick/ImageMagick-6.7.7-0.zip unzip ImageMagick-6.7.7-0.zip cd ImageMagick-6.7.7-0 ./configure --prefix=/usr/local/ImageMagick make make install Everything works nicelly until I discover that… >>> More
ImageMagick failing to convert to JPG

as seen on Server Fault - Search for 'Server Fault'
Hi: We recently installed the latest version of ImageMagick onto our Linux server. I seem to be having issues performing the most basic of tasks. I am running this command line: /usr/bin/convert /location/to/source/design.ai /location/to/save/output.jpg Unfortunatly is saves design.jpg as an… >>> More
Install ImageMagick on linux shared hosting

as seen on Server Fault - Search for 'Server Fault'
Is the installation of ImageMagick library possible for a non-root user in a shared hosting environment? >>> More
Recent ImageMagick on CentOS 6.3

as seen on Server Fault - Search for 'Server Fault'
I'm having a terrible time trying to get a recent version of ImageMagick installed on a CentOS 6.3 x86_64 server. First, I downloaded the RPM from the ImageMagick site and tried to install it. That failed due to missing dependencies: error: Failed dependencies: libHalf.so.4()(64bit) is needed… >>> More

Related posts about DPI

How to force high-dpi scaling?

as seen on Super User - Search for 'Super User'
How can i force an application to be high-dpi scaled? Or alternatively, how can an application that is not manifested as high-dpi aware, and doesn't have dpi-scaling disabled from the Properties-Compatibility tab, not be scaled? Pretend i have an application, who's developers decided to manifest… >>> More
DPI for EMF files

as seen on Stack Overflow - Search for 'Stack Overflow'
Do EMF files have a DPI that can be set? I have an application that allows saving an image in multiple formats (including EMF). I allow the user to specify the resolution/DPI for the image(s). However, I cannot find a way to do this for a MetaFile in C#. Is this possible or does EMF not have a DPI… >>> More
Calculating Screen Resolutions Using WPF

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
WPF measures all elements in device independent pixels (DIPs). These DIPs equate to device pixels if the current display monitor is set to the default of 96 DPI. However, for monitors set to a DPI setting that is different than 96 DPI, then WPF DIPs will not correspond directly to monitor pixels. Consider… >>> More
How can I make PDFs appear life-size when displayed at 100%?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
When I open a letter size PDF and then zoom to 100%, the page physically displayed on my monitor is smaller than a real letter size sheet of paper. How can I make "100%" on the computer screen correspond with "100%" in real life? Details This message suggests that I should be investigating the… >>> More
screen DPI - is there and equivalent command/action to Windows 150% Display

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I have a wide screen of high resolution and I see everything small on it. So In windows I set the display to 150%, I would like to do something similar in Ubuntu. Simply changing screen resolution to lower resolution doesn't help because Ubuntu is in a virtual machine and it simply changes the VM… >>> More