issue80:tuto_-_de_jpg_vers_pdf
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Les deux révisions précédentesRévision précédenteProchaine révision | Révision précédente | ||
issue80:tuto_-_de_jpg_vers_pdf [2014/05/03 18:15] – gsxfred | issue80:tuto_-_de_jpg_vers_pdf [2014/05/07 12:12] (Version actuelle) – auntiee | ||
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- | Fear not Blender fans – Nicholas will return next month. Well, assuming his employer will actually give him a day off and some free time that is... | + | **Fear not Blender fans – Nicholas will return next month. Well, assuming his employer will actually give him a day off and some free time that is... |
- | It's a common enough task, trying to convert multiple jpg files into one pdf, particularly when I don't need these to be converted with such high quality, I just want the black and white text readable. | + | It's a common enough task, trying to convert multiple jpg files into one pdf, particularly when I don't need these to be converted with such high quality, I just want the black and white text readable.** |
- | Ne craignez rien les fans Blender | + | Ne craignez rien chers fans de Blender, Nicolas sera de retour le mois prochain. |
- | C'est une tâche assez commune d' | + | Essayer |
- | I can scan, crop, and monochrome in a graphics program, but compiling them into a single PDF booklet was always tricky. Which is how I started using ImageMagick. | + | **I can scan, crop, and monochrome in a graphics program, but compiling them into a single PDF booklet was always tricky. Which is how I started using ImageMagick.** |
- | Je peux numériser, | + | Je peux numériser, |
- | ImageMagick is a command-line conversion program that is capable of so many more batch operations than this - resizing, compression, | + | **ImageMagick is a command-line conversion program that is capable of so many more batch operations than this - resizing, compression, |
- | ImageMagick est un programme de conversion en ligne de commande qui est capable de faire du traitement par lot de redimensionnement, de compression | + | ImageMagick est un programme de conversion, en ligne de commande, qui est capable de faire du traitement par lot pour redimensionner, compresser |
- | Bear in mind that creating a PDF document from multiple JPEG images can take some time, and you may want to trial different settings for size and quality of output, so I suggest you make a copy of the JPEG files in a temporary folder to play around with and use Imagemagick on those – NOT on your originals. Reducing the resolution as a first step will also make things much quicker. | + | **Bear in mind that creating a PDF document from multiple JPEG images can take some time, and you may want to trial different settings for size and quality of output, so I suggest you make a copy of the JPEG files in a temporary folder to play around with and use Imagemagick on those – NOT on your originals. Reducing the resolution as a first step will also make things much quicker. |
- | Originally I was just using the basic: | + | Originally I was just using the basic:** |
- | Gardez à l' | + | Gardez à l' |
- | Au départ, je voulais faire les choses simplement en utilisant : | + | Au départ, je voulais faire les choses |
convert *.jpg output.pdf and/or convert *.jpg -adjoin output.pdf | convert *.jpg output.pdf and/or convert *.jpg -adjoin output.pdf | ||
Ligne 28: | Ligne 28: | ||
convert *.jpg output.pdf et/ou convert *.jpg -adjoin output.pdf | convert *.jpg output.pdf et/ou convert *.jpg -adjoin output.pdf | ||
- | which works most of the time. However, there' | + | **which works most of the time. However, there' |
What this command does is take all the .jpg's (or format of your choice) in a folder, and convert them to a single PDF - you can name it whatever you like. | What this command does is take all the .jpg's (or format of your choice) in a folder, and convert them to a single PDF - you can name it whatever you like. | ||
You can avoid the segmentation fault bug and do the compression at the same time if you use: | You can avoid the segmentation fault bug and do the compression at the same time if you use: | ||
- | convert *.JPG -compress Zip output.pdf | + | convert *.JPG -compress Zip output.pdf** |
- | qui fonctionne la plupart du temps. Cependant, il y a un bug dans la routine de conversion qui peut dans certaines | + | qui fonctionne la plupart du temps. Cependant, il y a un bug dans la routine de conversion qui peut, dans certains |
- | Cette commande prend toutes | + | Cette commande prend tous les jpg (ou le format de votre choix) dans un dossier, et les convertit |
- | Vous pouvez éviter le bug d' | + | Vous pouvez éviter le bug d' |
convert *.JPG -compress Zip output.pdf | convert *.JPG -compress Zip output.pdf | ||
- | but the zip compression appears quite inefficient and results in huge file sizes. | + | **but the zip compression appears quite inefficient and results in huge file sizes. |
You could resize and lower the quality of the images using: | You could resize and lower the quality of the images using: | ||
- | mogrify -resize 50% -quality 25 | + | mogrify -resize 50% -quality 25** |
- | mais la compression zip apparaît | + | mais la compression zip apparait |
- | Vous pouvez redimensionner et réduire la qualité des images à l' | + | Vous pouvez redimensionner et réduire la qualité des images à l' |
mogrify -resize 50% -quality 25 | mogrify -resize 50% -quality 25 | ||
- | Which overwrites the originals. You can combine resizing and conversion using: | + | **Which overwrites the originals. You can combine resizing and conversion using: |
- | convert -quality 25 -resize 50% *.jpg -adjoin output.pdf | + | convert -quality 25 -resize 50% *.jpg -adjoin output.pdf** |
qui remplace les originaux. Vous pouvez combiner le redimensionnement et la conversion à l'aide de : | qui remplace les originaux. Vous pouvez combiner le redimensionnement et la conversion à l'aide de : | ||
convert -quality 25 -resize 50% *.jpg -adjoin output.pdf | convert -quality 25 -resize 50% *.jpg -adjoin output.pdf | ||
- | which works, but takes longer as you're combining batch operations. | + | **which works, but takes longer as you're combining batch operations. |
And yes, you can resizing images without overwriting the originals by specifying a new file name: | And yes, you can resizing images without overwriting the originals by specifying a new file name: | ||
Ligne 67: | Ligne 67: | ||
convert ' | convert ' | ||
+ | qui fonctionne, mais prend plus de temps car vous combinez plusieurs traitements par lots. | ||
- | which outputs the converted images as newfile001.jpg, | + | Et oui, vous pouvez redimensionner les images sans écraser les originaux en spécifiant un nouveau nom de fichier : |
+ | convert ' | ||
+ | |||
+ | **which outputs the converted images as newfile001.jpg, | ||
+ | |||
+ | for file in *.JPG ; do convert " | ||
+ | |||
+ | cela convertit les images et les renomme en newfile001.jpg, | ||
+ | Une autre solution, si vous souhaitez conserver le nom d' | ||
for file in *.JPG ; do convert " | for file in *.JPG ; do convert " | ||
- | This is just a sample of what Imagemagick can do if you are prepared to experiment at the command-line. | + | **This is just a sample of what Imagemagick can do if you are prepared to experiment at the command-line.** |
+ | |||
+ | Ce n'est qu'un échantillon de ce qu' |
issue80/tuto_-_de_jpg_vers_pdf.1399133716.txt.gz · Dernière modification : 2014/05/03 18:15 de gsxfred