https://bgstack15.ddns.net/blog/enContents © 2024 <a href="mailto:bgstack15@gmail.com">bgstack15</a> <a rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/"> <img alt="Creative Commons License BY-SA" style="border-width:0; margin-bottom:12px;" src="https://bgstack15.ddns.net/.images/l_by-sa_4.0_88x31.png"></a>Wed, 18 Dec 2024 14:00:37 GMTNikola (getnikola.com)http://blogs.law.harvard.edu/tech/rsshttps://bgstack15.ddns.net/blog/posts/2024/12/18/convert-pdf-to-jpg/bgstack15<p>Quick and dirty, but way better than <code>convert input.pdf output.jpg</code>. I'm assuming there was a resolution setting somewhere for "convert" that I never bothered to research.</p> <div class="code"><pre class="code literal-block">pdftoppm -jpeg -r 300 input.pdf output </pre></div> <p>Specifically omit the extension, because you will get files like <code>output-1.jpg</code>, <code>output-2.jpg</code>, et al.: one for each page.</p> <h2>References</h2> <p>Ripped shamelessly from:</p> <ol> <li><a href="https://bgstack15.ddns.net/blog/outbound/https:/stackoverflow.com/questions/43085889/how-to-convert-a-pdf-into-jpg-with-command-line-in-linux/61700520#61700520">How to convert a PDF into JPG with command line in Linux? - Stack Overflow</a></li> </ol>convertjpgpdfhttps://bgstack15.ddns.net/blog/posts/2024/12/18/convert-pdf-to-jpg/Wed, 18 Dec 2024 13:58:00 GMThttps://bgstack15.ddns.net/blog/posts/2022/06/18/convert-dng-to-jpg/bgstack15<p>I had a batch of .dng files that should be converted to .jpg format. I tried a few ways, but they did not preserve all the exif metadata. My process documented below does.</p> <ol> <li> <p>Use Irfanview to batch convert all .dng files to .jpg. This will strip a lot of the metadata.</p> </li> <li> <p>Add in metadata from original file.</p> <p>time for word in *dng ; do exiftool -all= -tagsfromfile "${word}" -exif:all "${word%%.dng}.jpg" ; done</p> </li> </ol> <p>This command syntax is verbatim from the man page for exiftool.</p> <ol> <li> <p>Apply original timestamp.</p> <p>for word in *dng ; do touch --no-create --reference "${word}" "${word%%dng}jpg" ; done</p> </li> <li> <p>Optionall, remove the original files.</p> <p>rm $( for word in *.jpg ; do echo "${word%%.jpg}.dng" ; done ; )</p> </li> </ol> <h2>References</h2> <h3>Man pages</h3> <ol> <li><code>exiftool(1p)</code></li> </ol>convertirfanviewjpghttps://bgstack15.ddns.net/blog/posts/2022/06/18/convert-dng-to-jpg/Sat, 18 Jun 2022 13:04:03 GMT