General :: Using Convert From Imagemagick Package To Convert Multiple Jpg Files?
Jul 18, 2010
I'm trying to use convert, I have installed the imagemagick. I use this line:convert *.jpg test.pdf but I'm only able to convert to pdf 1 single jpg file, not multiple files at once. When there's more than one file, I get the following error: Segmentation fault
I have a large number of scanned JPG images that I would like to convert into a single PDF file -- each image will be on its own page, and I want the pages to be in a certain order.What is the command for ImageMagick to take a batch of JPGs and convert them to PDF, and order the pages in a certain way.
(by the way: I am working on writing a Gentoo ebuild for convert2pdf at the moment, but until I get that worked out, I'd like to figure out how to do this using Imagemagick, which is already in the portage tree, and already installed)
I keep trying to convert a bunch of jpg files into pdf, but ImageMagick just seems to keep failing there. Well well, after three thousand fix and reinstall attempts (seriously, I've been trying to fix it for the last month or so), this is what I'm getting today:
I have Ubuntu 9.04 and just installed Sound Converter. I am trying to convert a bunch of .ogg files to mp3 to play on my iPod and it's not working so well. In the Sound Converter options I have is set to convert to high quality mp3. I choose the folder that the files are in and after a moment (slow laptop) Sound Converter populates, I hit 'convert' and it shows that the conversion completes in two seconds. All that it did was create the new folder structure of artist/album but there is nothing in there. Not sure what I am missing. I used Sound Converter before and it worked fine.
How do I make imagemagick convert things one at a time? I know how to make imaggemagick convert all pages of a pdf into individual jpeg files by storing it all in the RAM at once but if there isn't enough RAM, this will use swap like crazy and be suuuuuuuper slow.
Here is the command for the "crazy swap-using" way:
I am trying to split a PDF into component pages that are of equal quality to the original. If I use display mypdf.pdf, then the PDF is split into pages of acceptable quality. The problem here is that I have to save each page individually. If, however, I use convert mypdf.pdf mypdf.bmp, I get the individual pages of the PDF in .BMP format (which is fine, but not exactly what I want), but the quality is substantially less than the original. I've tried dozens of combinations of commands to try to increase this quality, but to no avail.
Even if I do convert mypdf.pdf mypdfagain.pdf, there is a big loss of quality. Anyone familiar with splitting a PDF into individual pages without suffering a loss in quality? Ideally, I would just save all the "scenes/frames" from display, but that feature unfortunately does not exist (though I may endeavor myself to add it if no formal solution exists).
NOTE: I think part of my problem might be: by using identify mypdf.pdf I can see that the resolution is specified, and when I convert it the resolution is much lower. This could be a source of quality loss, but I'm not familiar enough with image conversion to say that for sure. Whatever this command does, it removes the extra layer or whatever it is that prevents OCR from succeeding. I'd really like to understand that technology.. What is it about a PDF that allows an individual to embed some meta-data into every page of the PDF so that the only thing seen, say, through OCR, or a text search function, is the embedded text?
I have a lot of .flac files downloaded from several sites. Most of them come with a .cue file, and the .jpg with the cover, etc. It seems it is the intention of the uploader that one rebuilds the original CDDA. However, if I had a stand-alone CD/DVD player with flac I would hardly see the point of converting the flac to cdda. Furthermore, I could even play the flacs with a software player although, in this case, the audio quality would not be so good due to the noise picked up by the signal from the PC digital circuits.
I wanted to install this package to convert one Unix book into pdf. Since I have not set up the internet in the debian, I download the .deb files in winxp and transfer these files to my pen drive and then access it in the Debian. So I got all the 'depends' packages for the chm2pdf from the Debian Packages site and tried to install. Console was still asking for more dependencies. If I have got all the 'depends' packages which are required for chm2pdf, then why does it give problems ?
Does anyone know of any software that will convert a few csv's into a single xml?I have a windows program that has been doing it up until now but the info is pulled from one of my linux servers and then sent back to it afterwards, im looking to script it all rather and keep everything on the linux box.
I have a file (.tgz) which is meant to be simply copied to a floppy disc. I don't have a floppy disc, so I would like to convert the file to a .img file, so that it looks like a floppy disc but is on my hard drive. How do I do this? I have looked quite a lot. Surely there is some application that does it easily. This is for installation of Basic Linux, which comes on two floppy discs with ms-dos file systems.
How do you convert Open Office (ODT) documents to Text files? I have made a report using libre office. Now I wish to continue editing the document using lyx (latex front end). So the ODT file needs to be saved as some .tex file.
I don't see an option to do this in File menu (export/save as). So is there any other plugin to do this?
i have a large directory of .bsp files that i would like to convert .bz2 archives. I've been searching for some time and all i can find is the obvious compress multiple files into one large archive. If anyone knows how to convert each file individually, while retaining the original file name (testmap.bsp would be archived as testmap.bsp.bz2)
I have a lot of files with tabs littered throughout, and I'd like to convert them all into spaces. I know about the expand command, but unfortunately I would have to type out every single file using it. Is there any easier way to do this on Linux?
I had a Windows XP Home box setup with MySQL, Apache, bind9, phpBB. Then one evening while preparing a Linux replacement my Windows XP Home tower died. It completely croaked. It won't boot up past POST at all. No beep codes or anything! It just sits there with the power on like a brick. I cannot boot it to grab the database through the webserver with any web based MySQL script system. I also do not have another Windows box that I can install MySQL on.
There is no possible way I have to retrieve any MySQL databases that I had on it except by mounting the hard drive where MySQL stored the databases for Windows on it. I've Googled for hours on end trying to find a solution but to no avail. I tried simply copying the contents of the database as-is from where it was on Windows to where it would be on Linux but when I try to browse the phpBB forums I get this error:
Recently, my hard drive crashed. I was using XP and do not have my install discs (lost them 3 moves ago...). I make backups regularly and only lost roughly 3 days worth of material (nothing really important). On my other PC I've been running linux forever. I don't need windows and have installed a new HD in the PC and put fedora on there w/ no issues. Now historical email. There seems to be many workarounds for getting dbx files to mbox inside windows, but how would I accomplish this task without a windows install anywhere (Virtual installs are out as I do not have any install discs for windows anyways).
After a quick search, I only found one possible solution (in perl) and am looking for something that I don't have to program my self. I am a programmer by trade but have never programmed in perl (c++, FORTRAN, matlab, python... yes) and at this point, don't feel like learning new syntexs for this one problem (python has been my goto scripting language for everything linux...). Also if anyone has a link to a c++ lib(link to documentation?) that does the same thing... I might take a look at that and make a gui for it... then release it for others...
I'd like to write a bash script to convert all of the .mpg files in a directory to .avi files. The ffmpeg part of this produces the kind of file that I want, but rather than changing the name of the input and output files each time that I run the script, I'd like to automate it. I've tried this script, but I get an error "command not found".
#!/bin/bash cd /home/michael_s/golf_temp 1 for i in 'ls *.mpg' ; do /usr/bin/ffmpeg.exe -i /home/michael_s/golf_temp/"$i" -map 0:0 -map 0:1 -pass 1 -vcodec mpeg4 -vtag xvid -f avi -b 1100k -vol 384 -mbd rd -s 640x480 -aspect 4:3 -acodec libmp3lame -ac 2 -ab 128k /home/michael_s/golf_temp/"$i".avi
how can I convert .wav sound files to .gsm format as I have an application for this usage ? Please be informed that I have made use of the sox utility for this purpose , as the followings , but it didn't get through : #sox FR00003.wav -r 8000 -c 1 FR0003.gsm resample -ql
How do you convert a 9.04 .deb to a 9.10? I'm not sure if I even need to, but before I install an older package I would like to know if there are general rules. I have a camera software package that has yet to be updated, and I can't find the source code, but can find the Jaunty .deb. are there any pointers out there?
I'm trying to convert all file extensions for files in many sub-directories from uppercase to lowercase. I have two problems, how to list the absolute path to the files recursively over many sub-directories for which I so far have this:-
Code: find ~/Photos -print which would be fine, except it gives the directories on their own when it finds them rather than just the files with absolute paths. I couldn't find a switch for the "ls" command to do this, so I had to improvise with "find". and once I get grab each absolute file name, to just change the file extension rather than the entire file, which is what I have at the moment.