Now you tell me!Puppus Dogfellow wrote:musher, [...] is there a way to limit it to just the first page? i think the main purpose of a preview thumbnail is to give a document a unique icon that helps identify its contents and visually differentiate similarly titled files, in which case the cover shot (so to speak) should be enough. [... ]
Ok, guys, version 2 coming up! #!/bin/sh
# Location and title:
# ~/my-applications/bin/pdf2thumb-1a.sh
# Version 1a, for Semme and PuppusDogfellow!
# (c) musher0, 2014-12-17
####
# set -xv
dirpath=${@%/*}
NOMFICHIER="`basename "$1" | cut -d. -f1`"
pdftops -f 1 -l 2 "$@"
cd $dirpath
pstopnm -xsize=700 -ysize=900 -portrait $NOMFICHIER.ps
# -dpi=300, no.
# These little pnm* executables are pretty fussy, so
# we have to take the winding road.
for i in `ls -1 $NOMFICHIER*.ppm`;do
pnmscale 0.9 $i > "`basename $i | cut -d. -f1`".pnm
# This is barely readable... # Still, for real thumbnails, parameter should be from 0.1 to 0.3.
done
for i in `ls -1 $NOMFICHIER*.pnm`;do
pnmtojpeg $i > "`basename $i | cut -d. -f1`".jpg
done
wait
rm -f *.p?m
rm -f *.ps
mtpaint -v "$NOMFICHIER"00?.jpg || defaultimageviewer "$NOMFICHIER"00?.jpg
# set +xv
####
# Final note.
# Usage from cli:
# pdf2thumb.sh <nameof>.pdf
Hi Semme.Semme wrote:To our OP, Dosh.. What's the *target icon size* here, and *where* are
you accustomed to viewing such a preview?
.Code: Select all
#!/bin/sh
# Location and title:
# ~/my-applications/bin/pdf2thumb-1b.sh
# (c) musher0, 2014-12-17
####
# set -xv
dirpath=${@%/*}
NOMFICHIER="`basename "$1" | cut -d. -f1`"
pdftops -f 1 -l 2 "$@"
cd $dirpath
pstopnm -xsize=700 -ysize=900 -portrait $NOMFICHIER.ps
# -dpi=300, no.
# These little pnm* executables are pretty fussy, so
# we have to take the winding road.
for i in `ls -1 $NOMFICHIER*.ppm`;do
pamscale 0.9 $i > "`basename $i | cut -d. -f1`".pnm
# This is barely readable...
# Still, for real thumbnails, parameter can be from 0.1 to 0.3
done
for i in `ls -1 $NOMFICHIER*.pnm`;do
pamcut -top=150 -right=500 $i > "`basename $i | cut -d. -f1`".pmm
done
for i in `ls -1 $NOMFICHIER*.pmm`;do
pamtojpeg2k $i > "`basename $i | cut -d. -f1`".jpg
done
wait
rm -f *.p?m
rm -f *.ps
mtpaint -v "$NOMFICHIER"00?.jpg
# defaultimageviewer "$NOMFICHIER"00?.jpg
# set +xv
####
# Final note.
# Usage from cli:
# pdf2thumb.sh <nameof>.pdf
Got an example picture?slavvo67 wrote:Imagemagick can create a thumb.png easily. Just how to script to attach it as an icon instead of drag and drop. file below is the file name of pdf. [0] represents page 1 of the pdf. thumb.png is the thumbnail.
convert -thumbnail x80 file.pdf[0] thumb.png
Source code is available.k2pdf homepage wrote:It can also be used as a general PDF copying/cropping/re-sizing/OCR-ing manipulation tool. It can generate native or bitmapped PDF output...
For all documents? Well, let's start with PDFs.dosh2684 wrote:i'd like to know if there is in any way for me to view thumbnails for all documents namely pdfs texts docs...
Now let's put this to use and create thumbnails for ROX:slavvo67 wrote:Imagemagick can create a thumb.png easily....
convert -thumbnail x80 file.pdf[0] thumb.png
Code: Select all
#! /bin/sh
exec convert -thumbnail x"$3" "$1"[0] "$2"
Hello again, people.musher0 wrote:For the record, this java app generates thumbnails as well as bookmarks.
http://flavianopetrocchi.blogspot.ca/
I'm afraid I have no idea what you meanslavvo67 wrote:Suppose I don't want to include the name when executing the script. So, maybe I want to execute like I had it but pass the icon to ROX. Is there another way?
ROX always batch converts the whole directory when you switch to thumbnail view. Please keep in mind that the script is run by ROX, so there is nothing for you to execute.This way, you could batch convert a whole directory.
No, we don't know that. Or did you manage to add pdf thumbnails to ROX?musher0 wrote:Now we know that the net-pbm package (the pnm/pam execs) does it to a point
Yes, it's possible. Another and much easier option is to use pdftoppm, also included in most Puppies. But this will not help the OP. The point is that none of them produces png thumbnails in a format ROX is willing to use. ROX seems to ignore png files which don't contain metadata. IM is the only application I found that creates files which conform with ROX's picky format requirement.does anybody know a way of creating jpg or png thumbnails of a pdf file
using the ghostscript included in most Puppies?
Code: Select all
#!/bin/sh
# Location and title: # ~/my-applications/bin/pdf2thumb-1a.sh
# Using apps from the netpbm kit.
# (c) musher0, 2014-12-17 to 19.
# Usage from cli: # pdf2thumb-1a.sh name_of.pdf
####
# set -xv # for debugging
# Vars
dirpath=${@%/*}
NOMFICHIER="`basename "$1" | cut -d. -f1`"
# Process
# We convert to ps
pdftops -f 1 -l 1 "$@"
cd $dirpath # because little netpbm execs work only with filename.
# Once more, to pnm
pstopnm -xsize=700 -ysize=900 -portrait $NOMFICHIER.ps
# Size parameters necessary for utilities below to work as expected.
# Specifying -dpi=300 seems to mess up things. So, no.
# The next little pnm* executables are pretty fussy, so
# we have to take the winding road.
# We re-scale
for i in `ls -1 $NOMFICHIER*.ppm`;do
pamscale 0.7 $i > "`basename $i | cut -d. -f1`".pnm
# Result is barely readable...
# Still, for real thumbnails, parameter should be explored from 0.1 to 0.3
# to get a +/- 48x48 pixel size. If too small, resulting pnm file is invalid?
# Got errors here reporting an empty file for pamcut.
done
# We remove unwanted white space in borders.
for i in `ls -1 $NOMFICHIER*.pnm`;do
pamcut -top=100 -right=400 $i > "`basename $i | cut -d. -f1`".pmm
done
# Convenient dummy extension for tmp file. Erased at end.
# We have to remember that picture size is changed by pstopnm,
# then pamscale, then pamcut. All contribute to end result.
# Final conversion, to jpg
for i in `ls -1 $NOMFICHIER*.pmm`;do
pamtojpeg2k $i > "`basename $i | cut -d. -f1`".jpg
done
wait # until everything gets processed properly.
# Cleanup
rm -f *.p?m
rm -f *.ps
# Display
mtpaint -v "$NOMFICHIER"00?.jpg # Image should be saved in mtpaint or
# defaultimageviewer "$NOMFICHIER"00?.jpg # won't load it.
# set +xv # We turn debuggging off.