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PDF exporter for HTML presentations
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= DeckTape Antonin Stefanutti <https://github.com/astefanutti[@astefanutti]> // Meta :description: DeckTape is a high-quality PDF exporter for HTML5 presentation frameworks. :decktape-version: 2.0.0 :decktape-tag: v{decktape-version} // Settings :idprefix: :idseparator: - // Aliases :bullet:  •  ifdef::env-github[] :note-caption: :information_source: :icon-ban: :no_entry_sign: :icon-check: :white_check_mark: :icon-clock: :clock10: :icon-exclamation: :exclamation: :icon-exclamation-dim: :grey_exclamation: :icon-edit: :pencil2: endif::[] ifndef::env-github[] :icons: font :icon-ban: icon:ban[fw,role=red] :icon-check: icon:check-square-o[fw,role=green] :icon-clock: icon:clock-o[fw,role=silver] :icon-exclamation: icon:exclamation[fw,role=red] :icon-exclamation-dim: icon:exclamation[fw,role=silver] :icon-edit: icon:pencil[fw] endif::[] // URIs :uri-decktape-release: https://github.com/astefanutti/decktape/releases/latest :uri-puppeteer: https://github.com/GoogleChrome/puppeteer :uri-w3c-uievents-key: https://www.w3.org/TR/uievents-key/ :uri-docker: https://www.docker.com :uri-docker-hub: https://hub.docker.com :uri-docker-image: https://hub.docker.com/r/astefanutti/decktape :uri-docker-ref: http://docs.docker.com/engine/reference :uri-bespokejs: http://markdalgleish.com/projects/bespoke.js :uri-csss: http://leaverou.github.io/csss :uri-deckjs: http://imakewebthings.com/deck.js :uri-dzslides: http://paulrouget.com/dzslides :uri-flowtimejs: http://flowtime-js.marcolago.com :uri-impressjs: http://impress.github.io/impress.js :uri-pageres: https://github.com/sindresorhus/pageres :uri-remark: http://remarkjs.com :uri-revealjs: http://lab.hakim.se/reveal-js :uri-rise: https://github.com/damianavila/RISE :uri-shower: http://shwr.me :uri-slidy: http://www.w3.org/Talks/Tools/Slidy/ :uri-webslides: https://github.com/jlantunez/webslides {description} DeckTape is built on top of {uri-puppeteer}[Puppeteer] which relies on Google Chrome for laying out and rendering Web pages and provides a headless Chrome instance scriptable with a JavaScript API. NOTE: DeckTape 2.0 beta is available and now uses headless Chrome to render Web pages. See the https://github.com/astefanutti/decktape/tree/2.x[2.x] branch for more information. DeckTape currently supports the following presentation frameworks out of the box: [subs="normal"] .... {bullet}{uri-bespokejs}[Bespoke.js] {bullet}{uri-dzslides}[DZSlides] {bullet}{uri-remark}[remark] {bullet}{uri-shower}[Shower] {bullet}{uri-csss}[CSSS] {bullet}{uri-flowtimejs}[Flowtime.js] {bullet}{uri-revealjs}[reveal.js] {bullet}{uri-slidy}[Slidy] {bullet}{uri-deckjs}[deck.js] {bullet}{uri-impressjs}[impress.js] {bullet}{uri-rise}[RISE] {bullet}{uri-webslides}[WebSlides] .... DeckTape also provides a <<generic,generic command>> that works by emulating the end-user interaction, allowing it to be used to convert presentations from virtually any kind of framework. The generic mode is particularly useful for supporting HTML presentation frameworks that don't expose an API or accessible state. DeckTape's plugin-based architecture exposes an extension API, making it possible to add support for other frameworks or to tailor existing plugins to your specific needs. DeckTape can optionally be used to capture screenshots of your slide decks in various resolutions (similar to {uri-pageres}[pageres]). That can be useful to make sure your presentations are responsive or to create handouts for them. You can browse some slide deck <<examples,examples>> below that have been exported with DeckTape. == Install === NPM Install DeckTape globally and run it: ```sh $ npm install -g decktape $ decktape ``` == Usage [source] ---- $ decktape -h Usage: decktape [options] [command] <url> <filename> decktape version command one of: automatic, bespoke, csss, deck, dzslides, flowtime, generic, impress, remark, reveal, shower, slidy, webslides url URL of the slides deck filename Filename of the output PDF file Options: -s <size>, --size <size> Size of the slides deck viewport: <width>x<height> (ex. 1280x720) -p <ms>, --pause <ms> Duration in milliseconds before each slide is exported [1000] --load-pause <ms> Duration in milliseconds between the page has loaded and starting to export slides [0] --screenshots Capture each slide as an image [false] --screenshots-directory <dir> Screenshots output directory [screenshots] --screenshots-size <size> Screenshots resolution, can be repeated [--size] --screenshots-format <format> Screenshots image format, one of [jpg, png] [png] --slides <range> Range of slides to be exported, a combination of slide indexes and ranges (e.g. '1-3,5,8') Defaults to the automatic command. Iterates over the available plugins, picks the compatible one for presentation at the specified <url> and uses it to export and write the PDF into the specified <filename>. ---- In addition to the general options listed above, command specific options can be displayed the following way: $ decktape <command> -h == Commands [#automatic] === `automatic` Iterates over the available link:plugins[], picks the compatible one for presentation at the specified `url` and uses it to export and write the PDF into the specified `filename`. [#generic] === `generic` Emulates the end-user interaction by pressing the key with the specified `--key` option and iterates over the presentation as long as: [loweralpha] . Any change to the DOM is detected by observing mutation events targeting the body element and its subtree nor . the number of slides exported has reached the specified `--max-slides` option. The `--key` value must be one of the {uri-w3c-uievents-key}[UI events `KeyboardEvent` key values] and defaults to `ArrowRight`, e.g.: $ decktape generic --key=ArrowDown == Options === `--screenshots` Captures each slide as an image at the `--screenshots-size` resolution, exports it to the `--screenshots-format` image format and writes the output into the `--screenshots-directory` directory. The `--screenshots-size` option can be set multiple times. For example: $ decktape --screenshots --screenshots-size=400x300 --screenshots-size=800x600 === `--slides` Exports only the slides specified as a series of slides indexes and ranges, e.g.: [source,shell] ---- # Capture a single slide $ decktape --slides 1 # Capture a series of slides $ decktape --slides 1,3,5 # Capture a range of slides $ decktape --slides 1-10 # Capture a combination of slides and ranges $ decktape --slides 1,2,5-10 ---- The rendering stops and the file written out after the largest numbered slide is exported. == Examples The following slide deck examples have been exported using DeckTape: [cols="1v,1v,1v"] |=== |HTML5 Presentation |Framework |Exported PDF |http://razvancaliman.com/fowd-nyc-2014[Beyond Rectangles in Web Design] |reveal.js `2.6.2` |https://astefanutti.github.io/decktape/examples/fowd-nyc-2014.pdf[fowd-nyc-2014.pdf] (14MB) |http://artificer.jboss.org/slides/general/opensource-getting-involved.html[Getting Involved in Open Source] |reveal.js `3.0.0` |https://astefanutti.github.io/decktape/examples/opensource-getting-involved.pdf[opensource-getting-involved.pdf] (0.8MB) |http://astefanutti.github.io/further-cdi[Going Further with CDI] |Asciidoctor + DZSlides |https://astefanutti.github.io/decktape/examples/going-further-with-cdi.pdf[going-further-with-cdi.pdf] (1.8MB) |http://www.inf.usi.ch/faculty/pautasso/talks/2012/soa-cloud-rest-tcc/rest-tcc.html[Transactions for the REST of us] |impress.js `0.5.3` |https://astefanutti.github.io/decktape/examples/soa-cloud-rest-tcc.pdf[soa-cloud-rest-tcc.pdf] (10MB) |http://imakewebthings.com/deck.js[Deck.js Modern HTML Presentations] |deck.js `1.1.0` |https://astefanutti.github.io/decktape/examples/deck-js-presentation.pdf[deck-js-presentation.pdf] (1.1MB) |https://marcolago.github.io/flowtime.js/[Flowtime.js Presentation Framework] |Flowtime.js |https://astefanutti.github.io/decktape/examples/flowtime-js-presentation.pdf[flowtime-js-presentation.pdf] (7.5MB) |http://remarkjs.com[The Official Remark Slideshow] |remark `0.11.0` |https://astefanutti.github.io/decktape/examples/remark-js-slideshow.pdf[remark-js-slideshow.pdf] (0.7MB) |http://www.w3.org/Talks/Tools/Slidy[HTML Slidy: Slide Shows in HTML and XHTML] |Slidy |https://astefanutti.github.io/decktape/examples/html-slidy-presentation.pdf[html-slidy-presentation.pdf] (0.5MB) |http://leaverou.github.io/csss[CSSS: CSS-based SlideShow System] |CSSS |https://astefanutti.github.io/decktape/examples/csss-sample-slideshow.pdf[csss-sample-slideshow.pdf] (13.5MB) |http://shwr.me/?full[Shower Presentation Engine] |Shower |https://astefanutti.github.io/decktape/examples/shower-presentation-engine.pdf[shower-presentation-engine.pdf] (0.4MB) |http://mikemaccana.github.io/rejectjs2013[Welcome our new ES5 Overloards] |Bespoke.js |https://astefanutti.github.io/decktape/examples/new-es5-overloards.pdf[new-es5-overloards.pdf] (0.1MB) |=== == Docker DeckTape can be executed within a Docker container from the command-line using the {uri-docker-image}[`astefanutti/decktape`] Docker image available on {uri-docker-hub}[Docker Hub]: $ docker run astefanutti/decktape -h For example: * To convert an online HTML presentation and have it exported into the working directory under the `slides.pdf` filename: [source,shell,subs=attributes+] $ docker run --rm -v `pwd`:/slides astefanutti/decktape {uri-revealjs} slides.pdf * Or, to convert an HTML presentation that's stored on the local file system in the `home` directory: [source,shell] $ docker run --rm -v `pwd`:/slides -v ~:/home/user astefanutti/decktape /home/user/slides.html slides.pdf * Or, to convert an HTML presentation that's deployed on the local host: [source,shell] $ docker run --rm --net=host -v `pwd`:/slides astefanutti/decktape http://localhost:8000 slides.pdf You may want to specify a tag corresponding to a released version of DeckTape for the Docker image, e.g. `astefanutti/decktape:{decktape-version}`. Besides, it is recommended to use the following options from the {uri-docker-ref}/run[`docker run`] command: {uri-docker-ref}/run/#clean-up-rm[`--rm`]:: DeckTape is meant to be run as a short-term foreground process so that it's not necessary to have the container's file system persisted after DeckTape exits, {uri-docker-ref}/commandline/run/#mount-volume-v-read-only[`-v`]:: to mount a data volume so that DeckTape can directly write to the local file system. Alternatively, you can use the {uri-docker-ref}/commandline/cp[`docker cp`] command, e.g.: [source,shell,subs=attributes+] ---- # Run docker run without the --rm option $ docker run astefanutti/decktape {uri-revealjs} slides.pdf # Copy the exported PDF from the latest used container to the local file system $ docker cp `docker ps -lq`:decktape/slides.pdf . # Finally remove the latest used container $ docker rm `docker ps -lq` ---- Finally, if you want to execute DeckTape using a local clone of the DeckTape repository in order to take your changes into account, you can run: [source,shell] $ docker run --rm -v `pwd`:`pwd` -w `pwd` astefanutti/decktape slides.html slides.pdf == Plugin API {icon-edit}