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meeting:2017-04 [2017/04/25 16:58]
scruss [Notes] - added video link
meeting:2017-04 [2018/01/15 08:21]
scruss [Moar Notes]
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 ==== Moar Notes ==== ==== Moar Notes ====
  
-  * [[http://​gscan2pdf.sourceforge.net/​|gscan2pdf]],​ if you like graphical things, //​probably//​ does what you want …+  ​* [[http://​scantailor.org/​|Scan Tailor]] does a decent job of slicing up scanned books. 
 + 
 +  ​* [[http://​gscan2pdf.sourceforge.net/​|gscan2pdf]],​ if you like graphical things, //​probably//​ does what you want with scanned images ​
  
   * alternative to [[https://​en.wikipedia.org/​wiki/​Comic_book_archive|cbz]] format that's readable as a PDF yet retains JPEG files intact: collate with [[https://​gitlab.mister-muffin.de/​josch/​img2pdf|img2pdf]],​ burst apart with ''​pdfimages -j …''​ from [[https://​poppler.freedesktop.org/​|Poppler]].   * alternative to [[https://​en.wikipedia.org/​wiki/​Comic_book_archive|cbz]] format that's readable as a PDF yet retains JPEG files intact: collate with [[https://​gitlab.mister-muffin.de/​josch/​img2pdf|img2pdf]],​ burst apart with ''​pdfimages -j …''​ from [[https://​poppler.freedesktop.org/​|Poppler]].
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     * PDF/A archival format: [[https://​ghostscript.com/​doc/​current/​Ps2pdf.htm#​PDFA|Creating a PDF/A document from PostScript in ghostscript]],​ [[https://​stackoverflow.com/​questions/​1659147/​how-to-use-ghostscript-to-convert-pdf-to-pdf-a-or-pdf-x/​9343820#​9343820|converting a PDF to PDF/A]]: ''​gs -dPDFA -dBATCH -dNOPAUSE -dUseCIEColor -sProcessColorModel=DeviceCMYK -sDEVICE=pdfwrite -sPDFACompatibilityPolicy=1 -sOutputFile=output_filename.pdf input_filename.pdf''​. If you need to work out if the document is colour or not, ghostscript'​s [[https://​ghostscript.com/​doc/​current/​Devices.htm|inkcov]] device can tell you if colour was used at all.     * PDF/A archival format: [[https://​ghostscript.com/​doc/​current/​Ps2pdf.htm#​PDFA|Creating a PDF/A document from PostScript in ghostscript]],​ [[https://​stackoverflow.com/​questions/​1659147/​how-to-use-ghostscript-to-convert-pdf-to-pdf-a-or-pdf-x/​9343820#​9343820|converting a PDF to PDF/A]]: ''​gs -dPDFA -dBATCH -dNOPAUSE -dUseCIEColor -sProcessColorModel=DeviceCMYK -sDEVICE=pdfwrite -sPDFACompatibilityPolicy=1 -sOutputFile=output_filename.pdf input_filename.pdf''​. If you need to work out if the document is colour or not, ghostscript'​s [[https://​ghostscript.com/​doc/​current/​Devices.htm|inkcov]] device can tell you if colour was used at all.
     * Cryptographic signing: Rough process here, using an X.509 certificate issued by ARRL: [[http://​scruss.com/​blog/​2011/​10/​09/​creating-secure-digital-qsl-cards-with-your-lotw-certificate/​|Creating secure digital QSL cards with your LoTW certificate]]. I wonder if you could use P12 certs issued by [[https://​letsencrypt.org/​|Let’s Encrypt]]?     * Cryptographic signing: Rough process here, using an X.509 certificate issued by ARRL: [[http://​scruss.com/​blog/​2011/​10/​09/​creating-secure-digital-qsl-cards-with-your-lotw-certificate/​|Creating secure digital QSL cards with your LoTW certificate]]. I wonder if you could use P12 certs issued by [[https://​letsencrypt.org/​|Let’s Encrypt]]?
- 
-  * [[http://​scantailor.org/​|Scan Tailor]] does a decent job of slicing up books. 
  
   * other OCR software: [[https://​launchpad.net/​cuneiform-linux|Cuneiform]] used to be a contender and may still be useful. Not so sure about Gnu ocrad, gocr/jocr, …    * other OCR software: [[https://​launchpad.net/​cuneiform-linux|Cuneiform]] used to be a contender and may still be useful. Not so sure about Gnu ocrad, gocr/jocr, … 
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   * Chris B. suggested [[https://​github.com/​oniony/​TMSU|oniony/​TMSU:​ TMSU lets you tags your files and then access them through a nifty virtual filesystem from any other application.]]   * Chris B. suggested [[https://​github.com/​oniony/​TMSU|oniony/​TMSU:​ TMSU lets you tags your files and then access them through a nifty virtual filesystem from any other application.]]
   * [[http://​weasyprint.org/​|WeasyPrint]] is the rather clever Python-based web→PDF printer application I mentioned   * [[http://​weasyprint.org/​|WeasyPrint]] is the rather clever Python-based web→PDF printer application I mentioned
 +  * If you're running a Gnome-based system and the [[https://​wiki.gnome.org/​Projects/​Tracker/​|Tracker]] desktop search engine is running amuck, it's probably getting stuck indexing a particular file. I posted a workaround here: [[https://​askubuntu.com/​questions/​914581/​no-progress-updates-from-gnome-tracker/​914602#​914602|no progress updates from gnome tracker - Ask Ubuntu]]
  
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