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Update notes for 2018-12-02

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Alan Orth 2018-12-02 10:57:41 +02:00
parent a0f1b2910e
commit de150e2cf1
Signed by: alanorth
GPG Key ID: 0FB860CC9C45B1B9
3 changed files with 36 additions and 8 deletions
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14
content/posts/2018-12.md
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@ -41,5 +41,19 @@ org.im4java.core.InfoException: org.im4java.core.CommandException: org.im4java.c
- A comment on [StackOverflow question](https://stackoverflow.com/questions/53560755/ghostscript-9-26-update-breaks-imagick-readimage-for-multipage-pdf) from yesterday suggests it might be a bug with the `pngalpha` device in Ghostscript and [links to an upstream bug](https://bugs.ghostscript.com/show_bug.cgi?id=699815)
- I think we need to wait for a fix from Ubuntu
- For what it's worth, I get the same error on my local Arch Linux environment with Ghostscript 9.26:
```
$ gs -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 -sDEVICE=pngalpha -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -r72x72 -dFirstPage=1 -dLastPage=1 -sOutputFile=/tmp/out%d -f/home/aorth/Desktop/Food\ safety\ Kenya\ fruits.pdf
DEBUG: FC_WEIGHT didn't match
zsh: segmentation fault (core dumped) gs -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000
```
- When I replace the `pngalpha` device with `png16m` as suggested in the StackOverflow comments it works:
```
$ gs -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 -sDEVICE=png16m -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -r72x72 -dFirstPage=1 -dLastPage=1 -sOutputFile=/tmp/out%d -f/home/aorth/Desktop/Food\ safety\ Kenya\ fruits.pdf
DEBUG: FC_WEIGHT didn't match
```
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20
docs/2018-12/index.html
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@ -21,7 +21,7 @@ I noticed that there is another issue with PDF thumbnails on CGSpace, and I see
" />
<meta property="og:type" content="article" />
<meta property="og:url" content="https://alanorth.github.io/cgspace-notes/2018-12/" /><meta property="article:published_time" content="2018-12-02T02:09:30&#43;02:00"/>
<meta property="article:modified_time" content="2018-12-02T02:09:30&#43;02:00"/>
<meta property="article:modified_time" content="2018-12-02T10:47:41&#43;02:00"/>
<meta name="twitter:card" content="summary"/>
<meta name="twitter:title" content="December, 2018"/>
@ -48,9 +48,9 @@ I noticed that there is another issue with PDF thumbnails on CGSpace, and I see
"@type": "BlogPosting",
"headline": "December, 2018",
"url": "https://alanorth.github.io/cgspace-notes/2018-12/",
"wordCount": "202",
"wordCount": "301",
"datePublished": "2018-12-02T02:09:30&#43;02:00",
"dateModified": "2018-12-02T02:09:30&#43;02:00",
"dateModified": "2018-12-02T10:47:41&#43;02:00",
"author": {
"@type": "Person",
"name": "Alan Orth"
@ -156,8 +156,22 @@ org.im4java.core.InfoException: org.im4java.core.CommandException: org.im4java.c
<ul>
<li>A comment on <a href="https://stackoverflow.com/questions/53560755/ghostscript-9-26-update-breaks-imagick-readimage-for-multipage-pdf">StackOverflow question</a> from yesterday suggests it might be a bug with the <code>pngalpha</code> device in Ghostscript and <a href="https://bugs.ghostscript.com/show_bug.cgi?id=699815">links to an upstream bug</a></li>
<li>I think we need to wait for a fix from Ubuntu</li>
<li>For what it&rsquo;s worth, I get the same error on my local Arch Linux environment with Ghostscript 9.26:</li>
</ul>
<pre><code>$ gs -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 -sDEVICE=pngalpha -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -r72x72 -dFirstPage=1 -dLastPage=1 -sOutputFile=/tmp/out%d -f/home/aorth/Desktop/Food\ safety\ Kenya\ fruits.pdf
DEBUG: FC_WEIGHT didn't match
zsh: segmentation fault (core dumped) gs -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000
</code></pre>
<ul>
<li>When I replace the <code>pngalpha</code> device with <code>png16m</code> as suggested in the StackOverflow comments it works:</li>
</ul>
<pre><code>$ gs -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 -sDEVICE=png16m -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -r72x72 -dFirstPage=1 -dLastPage=1 -sOutputFile=/tmp/out%d -f/home/aorth/Desktop/Food\ safety\ Kenya\ fruits.pdf
DEBUG: FC_WEIGHT didn't match
</code></pre>
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10
docs/sitemap.xml
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@ -4,7 +4,7 @@
<url>
<loc>https://alanorth.github.io/cgspace-notes/2018-12/</loc>
<lastmod>2018-12-02T02:09:30+02:00</lastmod>
<lastmod>2018-12-02T10:47:41+02:00</lastmod>
</url>
<url>
@ -199,7 +199,7 @@
<url>
<loc>https://alanorth.github.io/cgspace-notes/</loc>
<lastmod>2018-12-02T02:09:30+02:00</lastmod>
<lastmod>2018-12-02T10:47:41+02:00</lastmod>
<priority>0</priority>
</url>
@ -210,7 +210,7 @@
<url>
<loc>https://alanorth.github.io/cgspace-notes/tags/notes/</loc>
<lastmod>2018-12-02T02:09:30+02:00</lastmod>
<lastmod>2018-12-02T10:47:41+02:00</lastmod>
<priority>0</priority>
</url>
@ -222,13 +222,13 @@
<url>
<loc>https://alanorth.github.io/cgspace-notes/posts/</loc>
<lastmod>2018-12-02T02:09:30+02:00</lastmod>
<lastmod>2018-12-02T10:47:41+02:00</lastmod>
<priority>0</priority>
</url>
<url>
<loc>https://alanorth.github.io/cgspace-notes/tags/</loc>
<lastmod>2018-12-02T02:09:30+02:00</lastmod>
<lastmod>2018-12-02T10:47:41+02:00</lastmod>
<priority>0</priority>
</url>