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92 lines
3.9 KiB
Markdown
translating---geekpi
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How To Create A Video From PDF Files In Linux
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======
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I have a huge collection of PDF files, mostly Linux tutorials, in my tablet PC. Sometimes I feel too lazy to read them from the tablet. I thought It would be better If I can be able to create a video from PDF files and watch it in a big screen devices like a TV or a Computer. Though I have a little working experience with [**FFMpeg**][1], I am not aware of how to create a movie file using it. After a bit of Google searches, I came up with a good solution. For those who wanted to make a movie file from a set of PDF files, read on. It is not that difficult.
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### Create A Video From PDF Files In Linux
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For this purpose, you need to install **" FFMpeg"** and **" ImageMagick"** software in your system.
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To install FFMpeg, refer the following link.
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Imagemagick is available in the official repositories of most Linux distributions.
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On **Arch Linux** and derivatives such as **Antergos** , **Manjaro Linux** , run the following command to install it.
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```
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sudo pacman -S imagemagick
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```
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**Debian, Ubuntu, Linux Mint:**
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```
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sudo apt-get install imagemagick
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```
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**Fedora:**
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```
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sudo dnf install imagemagick
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```
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**RHEL, CentOS, Scientific Linux:**
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```
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sudo yum install imagemagick
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```
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**SUSE, openSUSE:**
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```
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sudo zypper install imagemagick
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```
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After installing ffmpeg and imagemagick, convert your PDF file image format such as PNG or JPG like below.
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```
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convert -density 400 input.pdf picture.png
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```
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Here, **-density 400** specifies the horizontal resolution of the output image file(s).
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The above command will convert all pages in the given PDF file to PNG format. Each page in the PDF file will be converted into a PNG file and saved in the current directory with file name **picture-1.png** , **picture-2.png** … and so on. It will take a while depending on the number of pages in the input PDF file.
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Once all pages in the PDF converted into PNG format, run the following command to create a video file from the PNG files.
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```
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ffmpeg -r 1/10 -i picture-%01d.png -c:v libx264 -r 30 -pix_fmt yuv420p video.mp4
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```
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Here,
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* **-r 1/10** : Display each image for 10 seconds.
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* **-i picture-%01d.png** : Reads all pictures that starts with name **" picture-"**, following with 1 digit (%01d) and ending with **.png**. If the images name comes with 2 digits (I.e picture-10.png, picture11.png etc), use (%02d) in the above command.
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* **-c:v libx264** : Output video codec (i.e h264).
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* **-r 30** : framerate of output video
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* **-pix_fmt yuv420p** : Output video resolution
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* **video.mp4** : Output video file with .mp4 format.
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Hurrah! The movie file is ready!! You can play it on any devices that supports .mp4 format. Next, I need to find a way to insert a cool music to my video. I hope it won't be difficult either.
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If you wanted it in higher pixel resolution, you don't have to start all over again. Just convert the output video file to any other higher/lower resolution of your choice, say 720p, as shown below.
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```
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ffmpeg -i video.mp4 -vf scale=-1:720 video_720p.mp4
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```
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Please note that creating a video using ffmpeg requires a good configuration PC. While converting videos, ffmpeg will consume most of your system resources. I recommend to do this in high-end system.
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And, that's all for now folks. Hope you find this useful. More good stuffs to come. Stay tuned!
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--------------------------------------------------------------------------------
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via: https://www.ostechnix.com/create-video-pdf-files-linux/
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作者：[SK][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.ostechnix.com/author/sk/
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[1]:https://www.ostechnix.com/20-ffmpeg-commands-beginners/
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