Software :: Produce Good FAX Image Using Ghostscript And ImageMagick
Oct 17, 2010
I have to send a FAX (as some recipients are about 20 years behind the times). Sometimes the document looks excellent on the screen, but what comes out the other end looks terrible. So I'm trying to come up with a way to produce the best quality FAX from a vector PDF (which is searchable with images and text). Part of the goal is to preview the fax in advance, so there are no surprises. I start by converting the vector PDF to a raster (bitmap) postscript document:
[code]...
How can these steps above be improved?
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Jan 12, 2011
in imagemagick,i have a png format picture, but it seems too big for me,i wanna compress it ...how can i do ...command line...Code:convert "png.png" -strip -units PixelsPerInch -density 96 -quality 60 "png2.png"this command can't compress the picture, the worse is: the size will be bigger...
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May 16, 2011
I'm on Ubuntu 11.04, and am trying to overlay a static blue coastline image onto a geostationary GIF animation with 12 frames using imagemagick. The code I used to create the composite animation is as follows:
Code:
convert ( animation.gif -coalesce ) null: ( outline.tif -coalesce ) -layers Composite composite_animation.gif
The resulting animation is below:
[URL]
It's a bit hard to see, but the blue outline should be aligned much farther to the left on the image, but the vast majority of it is cut-off to the right because it is shifted so far. It should be centered. Both the outline and the background are actually cropped regions out of respectively larger images that are identical in size and are designed to be overlaid.
If I choose a cropped region farther to the right on the background animation, the cropped blue outline of the same region won't even show up at all after the overlaying, as if it is shifted completely off the screen for some reason. I have had success overlaying outlines before with the above command, but here it is not working. I tried appending "-gravity center" to the command with no success.
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Mar 22, 2010
I have a PDF document that I need to rotate page through 180 degrees.
Can anyone tell me if Ghostscript can do this and if so how?
I've gone through the documentation and can't seem to find anyting on it nor Google
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Jul 27, 2011
I wasn't able to fix it... poor Lappy ), and everything seemed to be going just swimmingly. Then, when I was testing out one of my old scripts in Octave today, it barked at me about needing epstool to print plots to file.
[Code]...
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Mar 10, 2011
Compiling ghostscript (9.01 or older) on a SUSE-11.3 does not include the x11 devices.gs -h does not show x11, x11alpa, x11mono, etc.Compiling on an old SLES-9.3 all x11 devices are included.On the old SLES-9.3 there is a library /usr/X11R6 with subdirs lib and include.Apparently including x11 devices depends on the libraries in /usr/X11R6.Question 1: how do I compile ghostscript on suse-11.3 with x11 devices included? The option --with-x does Question 2: where can I get the appropriate /usr/X11R6 for SUSE-11.3?
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Feb 19, 2010
I'm trying to convert a jpg to eps with ghostscript using the command
Code:
gs -sDEVICE=jpeg -dJPEGQ=100 -dNOPAUSE -dBATCH -dSAFER -r300 -sOutputFile=file1.jpg file1.eps
but I'm getting the error message
Code:
Error: /undefinedfilename in (file1.eps)
[Code].....
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Oct 17, 2010
Similarly to this question:Convert a PDF to greyscale on the command line in FLOSS?I have a PDF-document and want to convert it to pure black and white. So I want to discard halftones. To convert to grayscale with ghostscript I can use this command:
gs
-sOutputFile=output.PDF
-sDEVICE=pdfwrite
[code]....
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Feb 15, 2010
I'm trying to get GS to print to network Windows printer, but somehow fail to do so . I managed to print through CUPS to that printer but if I use GS with -sDEVICE=cups nothing happens, nothing is printed, CUPS logs remain unchanged... I also found command using smbclient (gs ... | smbclient //machine/printer -U user ... -c 'printmode graphics;print-') but that one fails with "session setup failed: NT_STATUS_REQUEST_NOT_ACCEPTED" Here is why I need it, so maybe you know better way: We need to print thousands of PDF files in one print job (to prevent anybody else to send something else in while we are printing this). I was trying to develop small C program using GS API to achieve this but somehow I fail on something as trivial as print something on shared network printer.
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Dec 13, 2009
im using cups filter 'texttops', to generate postscript file, then I;m using ghostscript to create pdf file. The problem is, that file generated from texttops don't contain landscape orientation instructions. How can I force ghostscript to do that. Here is the command Im using:
gs -sDEVICE=pdfwrite -sOutputFile=<outfile> -dBATCH -dNOPAUSE -f <infile>
I've found on the internet these instructions, but they don't work for me:
gs -dBATCH -dNOPAUSE -sOutputFile=myfile.pdf -sDEVICE=pdfwrite -dAutoRotatePages=/None -c "<< /PageSize [612 792] /Orientation 3 >> setpagedevice" 90 rotate 0 -612 translate -f myfile.eps
[code]....
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Jul 27, 2010
I know Ghostscript can convert PDFs to JPGs, and in the case of a multi-page PDF, can rip each page to an individual JPG. But is it possible to have it rip them to one JPG, so that the pages are pasted below each other, e.g. the top half of the JPG is page 1, the bottom half is page 2? Or do I have to use another program (and can ImageMagick do this?) to combine the JPG pages into one image?
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Jan 14, 2011
I've spent hours trying to scan + shrink a multipage PDF documentlosing readability. This is the first time I've ever needed to do this! (I had to scan each page as ".jpg" in order to email and open on another computer, so I could not scan to PDF directly, which I think is why each page was so large; lower DPIs made the text too blurry.)I found this great tip on UbuntuGeek...but anyone can do this if GhostScript is installed:
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Jun 25, 2011
After upgrade to ghostscript 9.02 from current all print jobs fail with: 'There is a missing print filter for printer HP_F2480'
The printer is an All-inone deskjet F2480 and the cups printer queue has been
setup with the hplip tools. Before the upgrade it was 'working' with quite a few bugs...eg image not printed correct, multipage printing garbage. (page for page printing was the workaround)
Do I need to remove the printer and define it again?
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Jan 14, 2011
Logitech 9000 pro.
I need 30 fps so I can splice into existing video.
I am using this script.
Code:
Even though I have set 'fps' to 30, I only get between 14 and 16. Several thread on the internet tell me that UVC in only capable of 15 fps in 640x480 mode.
Is there some way to make the camera (ID 046d:0809 Logitech, Inc.) work as something OTHER than a UVC type camera? Is there a code snippet to work with?
I have no problems with getting the camera to work with any of the apps in the Ubuntu reposit. The script above records video and audio great, just not 30 fps.
The video I will be splicing into will be shot with a video recorder and windows software. If it is a USB hookup, will it have the same constraints of UVC at 15 fps. IIRC, it is the USB that has the compression problem that limit it to 15 fps.
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Jun 13, 2010
I am having no joy at all trying to produce a DVD with menus using Slackware. I have spent the best part of a day and a half, to no avail, and have had to revert to using either Ubuntu or Win XP under virtualbox just to achieve this.
Have tried using the following front ends to dvdauthor:
Dvdstyler
Devede
2mandvd
Kdenlive (dvdwizard)
Varsha
I am able to produce a DVD with any of them, but without menus. As soon as I try anything to get a menu, all that happens is the menu is produced, but the 'clickable' buttons do nothing, meaning I am unable to navigate away from the menu. Using Dvdstyler under Ubuntu, and follwing exactly the same procedure to produce the DVD works as expected, as does any of the myriad of progs available for Win XP.
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Apr 15, 2009
I'm attempting to install ImageMagick on my shiny new CentOS 5 server, but it wants to install a bunch of X libs and ALSA to get that to run.
I don't really want sound software and X installed. I see there is a configure option to install --without-x.Are there any alternatives to compiling from source? Any sort of rpm you know of that I am not seeing?
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Dec 9, 2009
I saw the article in Suspend to disk - openSUSE and I decided to test s2disk on my VAIO VGN-AR41L (laptop) using ext4 system (which supports journaling). I used the button of the KDE4 to initiate the process of suspend to disk. The process of storing the image and shutdown the computer worked. But the reverse process didn't work. I also saw in the article that there is a workaround for the journaled systems. Instead of doing this can I switch off journaling on ext4 without loss of data? And if yes, how can this be done?
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May 5, 2011
I have an ImageMagick command that is something like this:
convert "/path/to/photo" -set comment "(c) my company" -resize WxH miff:- | composite -dissolve 30 -geometry +40+138 -quality 80 "/path/to/logo.miff" - jpeg:"/path/to/photo_for_public"
Directory /path/to is mounted over NFS (same network). Some options of fstab that might be helpful:
Both rsize and wsize are 3kB
hard,proto=tcp,timeo=600,retrans=2
Sometimes the imagemagick command fails and produces no file (/path to/photo_for_public might not emerge after command execution). Files might be from 100kB to 10MB. We usually re-run the command for files not generated. Sometimes it fails even twice, so we do it third time (hilariously funny, but even a third run can fail).
Are there any thoughts what may be wrong with my photo-processing setup?
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Jul 1, 2010
I want to create a dvd for a relative you know the kind of thing, old pictures and a soundtrack. What is the best application to do this?
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Jun 6, 2010
while installing ImageMagick on my i686-pc-linux gnu, everything seems to go fine when i put ./configure --with-modules in action. however, after this, as soon as i execute "make"
it gives loads of error as shown below:
"make all-am
make[1]: Entering directory `/home/vijitkarma/ImageMagick-6.6.2-2'
CC magick/magick_libMagickCore_la-animate.lo
make[1]: Leaving directory `/home/vijitkarma/ImageMagick-6.6.2-2'
[Code]...
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Dec 15, 2010
Kernel 2.6.21.5, Slackware 12.0
Xfce 4.4
For example I've just issued 'mplayer foo.flac' and I do not want an error made by me while in the GUI to issue a loud sound notifying me the error and putting in risk my speakers.
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Oct 10, 2010
I encounter a problem with my program recently, i get the core dump of my
program, and it produced by a segill signal, i wondered that how my program can happen to generate this error, and i never write a "0 divide"
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Feb 1, 2010
I have been asked to provide a document in Microsoft word format. Is there a lightweight MS word editor to produce Microsoft word documents please? I don't want to install the whole Open Office thing just to produce one document.
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Jan 8, 2010
I am getting error like:
"/usr/lib/ruby/1.8/i486-linux/RMagick2.so: This installation of RMagick was configured with ImageMagick 6.5.1 but ImageMagick 6.5.8-10 is in use. (RuntimeError)".
So, I am trying to install ImageMagick 6.5.1. But it gives me error like:
"ERROR: Can't create '/usr/local/man/man3".
And I am using Ubuntu 9.10.
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Dec 27, 2010
We are a small company producing short movies in Arabic and we stick to adobe premiere pro cs4. Lately we need to reduce our cost by moving to ubuntu to save Microsoft fees especially regular support. The main problem we have now is the tool to use for producing our short movies, so the main question is:- Does there is any tool we can use as equivalent to adobe premiere pro cs4? I am looking for a really series tool.
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Mar 12, 2011
ve read some stuff regarding problems with virtual consoles not appearing for some graphics settings, but I think this problem is different.Just a few days ago I had no problem using ctrl-alt-f6 (for example) to get to a virtual console outside of the normal X environment. That no longer works. Nothing happens, no distorted screen, I'm just stuck in the normal X session that comes up as if I did nothing. I didn't make any configuration changes, though I suppose some update could have caused it?I may have read that this is some problem in grub2? If so, is there a way I can get around it without trying to switch back to grub1? I'd rather not mess too much with the bootloaders if I don't have to
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May 2, 2010
I need to get imagemagick on a Debian Lenny up from the lowly 6.3.9 version up to 6.4.9, I have looked it up, but can't get brief details on this ... if I just apt-get install, well I get the older version. Do I have to come up with my own deb package?
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Mar 30, 2010
I have script that I wish to distribute to a small group that requires ImageMagick, but many in the group don't have ImageMagick installed. I'm not really in a position where by I can install ImageMagick on all the groups machines, and my knowledge of compiling is pretty restricted to ./configure; make; make install. Is it possible to compile ImageMagick (or indeed any other program) into a single binary without any external dependencies? I believe to accomplish this I provide ./configure with the following arguments:
[code]...
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Mar 15, 2010
I have an AVI which I produced on Blender in which a camera revolves around a model.
I want the camera to continuously circle the model over and over again.
I know I can do this in a GIF file format, but are there other formats that will do this?
What software can I use that would accomplish this?
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Jan 27, 2011
when i use image magick...in command, use -strip, can remove image's verbose but c++ code, how can i do?
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