cs:pdf_to_pictures
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
|
cs:pdf_to_pictures [2019/02/07 15:16] paolo_bolzoni Add border parameter |
cs:pdf_to_pictures [2019/02/07 18:21] paolo_bolzoni |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| ======= Convert PDF to pictures ======= | ======= Convert PDF to pictures ======= | ||
| - | Seldom printers fail to print a PDF file, a is converting the file to a sequence of pictures; basically doing the whole process to decide where the inks should go in your computer before sending the result to the printer. | + | Seldom printers fail to print a PDF file, a possible solution is to convert the file to a sequence of pictures; basically this means to do the whole process that decides where the inks should go in your computer; before sending the result to the printer. |
| - | Ghostscript does most of the hard work creating the pictures, however it does not apply any kind of antialiasing so when creating a picture in the printing resolution (usually 300 DPI) the result will be poor. | + | Ghostscript does most of the hard work creating the pictures, however it does not apply any kind of smoothing to the curves so when creating a picture in the printing resolution (usually 300 DPI) the result will be poor. |
| To workaround this problem we use a trick similar to videogames antialiasing. We create the picture 4 times larger and we resize it later to the correct size applying smoothing algorithms. | To workaround this problem we use a trick similar to videogames antialiasing. We create the picture 4 times larger and we resize it later to the correct size applying smoothing algorithms. | ||
| - | Finally we losslessy put all the pictures in a new PDF. The resulting PDF will have no text, no fonts or anything a part of pictures. So it lost much of its convenience and the resulting file will be much larger, however printers will not fail to print it. | + | Finally we losslessy put all the pictures in a new PDF. The resulting PDF will have no text, no fonts or anything a part of pictures. So it loses much of its convenience and the resulting file will be much larger, however printers will not fail to print it. |
| Software used: | Software used: | ||
| Line 18: | Line 18: | ||
| $ gs -sDEVICE=pngalpha -o output-%04d.png -r1200 input.pdf | $ gs -sDEVICE=pngalpha -o output-%04d.png -r1200 input.pdf | ||
| - | Please note that 1200 is four time the wanted resolution, we want to print to 300DPI. | + | Please note that 1200 is four times the wanted resolution, we want to print to 300DPI. |
cs/pdf_to_pictures.txt ยท Last modified: 2019/02/11 16:30 by paolo_bolzoni
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International
