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How do I convert a PDF document to a preview image in PHP? [closed]
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You need ImageMagick and GhostScript
<?php
$im = new imagick('file.pdf[0]');
$im->setImageFormat('jpg');
header('Content-Type: image/jpeg');
echo $im;
?>
The [0] means page 1.
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Why does (1 in [1,0] == True) evaluate to False?
When I was looking at answers to this question , I found I didn't understand my own answer.
1 Answer
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Have a reloadData for a UITableView animate when changing
...s. When we switch between the modes I have a different number of sections and cells per section. Ideally, it would do some cool animation when the table grows or shrinks.
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What's the difference between CENTER_INSIDE and FIT_CENTER scale types?
I can't tell the difference between ImageView.ScaleType.CENTER_INSIDE and ImageView.ScaleType.FIT_CENTER .
3 Answers
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Gradient borders
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WebKit now (and Chrome 12 at least) supports gradients as border image:
-webkit-border-image: -webkit-gradient(linear, left top, left bottom, from(#00abeb), to(#fff), color-stop(0.5, #fff), color-stop(0.5, #66cc00)) 21 30 30 21 repeat r...
Does Java SE 8 have Pairs or Tuples?
I am playing around with lazy functional operations in Java SE 8, and I want to map an index i to a pair / tuple (i, value[i]) , then filter based on the second value[i] element, and finally output just the indices.
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Plot two histograms on single chart with matplotlib
I created a histogram plot using data from a file and no problem. Now I wanted to superpose data from another file in the same histogram, so I do something like this
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What is the difference between a regular string and a verbatim string?
I have a trial version of Resharper and it always suggests that I switch regular strings to verbatim strings. What is the difference?
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What are “Groovy” and “Grails” and what kinds of applications are built using them?
Nowadays I hear a lot about "Groovy on Grails" and I want to know more about it:
4 Answers
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jQuery: How can i create a simple overlay?
...simply put, a div that stays fixed on the screen (no matter if you scroll) and has some sort of opacity.
This will be your CSS for cross browser opacity of 0.5:
#overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: #000;
filter:alpha(...