-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Thanx to all, problem solved! Allan Zhang's suggestion made all the difference. A bit of background, for those interested in TMI: I recorded a presentation on the weekend, and was given a copy of the .pptx presentations so I could follow along on my computer recording the audio and keep the slides in synch (kudos to Kirk Zurell for inspiring me; this is how he recorded Paul Nijjar's "How to Win Electoral Reform" presentation last year). Unfortunately, many of the fancy slide transitions didn't work in LibreOffice; I got lost a couple of times and had to back up (so much for synching with audio); and anyway, recordmydesktop didn't keep up, so there were pixel blocks from earlier slides obscuring the current slide (but the --full-shots parameter might have fixed that). The idea was that the video (recorded separately) and screencap could have been combined in KDEnlive to make a nice integrated video. But since the screencap video is useless, now I'm looking at grabbing each presentation slide as a .png and adding that to KDEnlive as a static image. Unfortunately, slides where the text appears progressively doesn't translate well to .pptx -> .pdf -> .png, but Alex Zhang pointed me to the "Expand Animations" .oxt plugin https://github.com/monperrus/ExpandAnimations/issues It's not perfect (doesn't preserve master slide background colors or gradients), but it creates an intermediate *-expanded.odp file that I can work with. While it means manipulating each .pptx file separately and manually, it does mean that my problem is solved with the application of a bit of manual labour. - --Bob. On 2016-06-20 03:58 PM, Allan Zhang via talk wrote:
Try libreoffice --headless --convert-to png *.pptx Sorry, ignore this. This will only convert the first slide of each
On Mon, Jun 20, 2016 at 03:33:25PM -0400, Allan Zhang wrote: pptx.
You could batch convert to pdf with libreoffice --headless --convert-to pdf *.pptx and use unoconv of ImageMagick convert like Myles said.
Bob, I think this extension may be what you are looking for: http://www.monperrus.net/martin/export+animations+to+pdf+in+libreoffice-open...
Hopefully it works and you are able to find a way to automate it for multiple files.
- -------- Original Message -------- From: Myles Braithwaite via talk <talk@gtalug.org> Sent: June 20, 2016 3:25:45 PM EDT To: Bob Jonkman <bjonkman@sobac.com>, GTALUG Talk <talk@gtalug.org> Subject: Re: [GTALUG] Converting .pptx files to multiple .png
Bob Jonkman via talk wrote:
Hi: I've got a bunch of .pptx (Microsoft PowerPoint) files that I'd like to convert to individual .png files for each slide, preferably where each step in a transition becomes its own .png file.
You can use unoconv[0] (a universal office converter that works with anything that LibreOffice or OpenOffice support) to convert them to a pdf file. Then use ImageMagick[1] to convert them to png files.
Here is a quick script (that probably doesn't work so don't blame me if it fails) on how I would start doing it: <https://gist.github.com/myles/3656ebcb3026b455d1b3be52d5bd3a58>.
Hope this helps.
[0]: <https://github.com/dagwieers/unoconv> [1]: <http://www.imagemagick.org/script/index.php> - --- Talk Mailing List talk@gtalug.org https://gtalug.org/mailman/listinfo/talk -----BEGIN PGP SIGNATURE-----
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