There are obviously many different methods to create watermark for an image. However, in this article, I will show how to do the task without using any GUI application. Everything will totally be done in the terminal with the help of imagemagick.
I use one of my favorite images, the pic of Linus Torvalds raising his middle finger, as the example.
Don't know when you might feel the necessity to convert a pdf into a .jpg or a .png file , but in case you have to, then ImageMagick will make this job really easy for you. ImageMagick is a great opensource command line utility for image manipulation.
Hello!
I'm using this code
Code:
#Create watermark
convert -size 700x80 xc:black -font /usr/share/fonts/truetype/eager___.ttf -pointsize 100 -gravity center \
-draw "fill black text 0,0 '©Acrocephalus'" -stroke black -strokewidth 2 \
stamp_fgnd.png
convert -size 700x80 xc:black -font /usr/share/
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.
So I'm stumped. I've been wrestling with this simple command to turn an SVG file into a transparent SVG to no avail.
I would like to convert a png file to a pdf file or a djvu file.
You may sometimes want to add a watermark to your documents to claim your authority. There are, of course, many different ways to do the trick but in today's article, I will show you how to do it using two popular open source applications, GIMP and LibreOffice Writer. Both applications are pre-installed in Linux Mint 13.
Step 1 : Create a watermark image using GIMP
Open an A4 template.
In today's article, I will show you how to create a simple fading gif image with GIMP. I will use the image below as the sample.
First, open the image on GIMP then make the layer transparent. Just go to Layer > Transparency > Color to Alpha then hit OK:
Next, you need to create several copies of this layer. Go to Layer > Duplicate Layer or just simply hit Shift + Ctrl + D.
This is another small tip, but very useful for webmasters, you know that a webpage loads faster if you define the height and width of an image in the html code.
But what if you do not know that info of a given image?, you can always fire the GIMP or any other graphical application to check the size of a given picture but you can easily do it from the command line.
identify picture.jpg
The outp