The most simple tool: use pdftk (or pdftk.exe, if you are on Windows): pdftk 10_MB.pdf 100_MB.pdf cat output 110_MB.pdf This will be a valid PDF. Download pdftk here. Update: if you want really large (and valid!), non-optimized PDFs, use this command: pdftk 100MB.pdf 100MB.pdf 100MB.pdf 100MB.pdf 100MB.pdf cat output 500_MB.pdf or even (if you are … Read more
Use Imagemagick, or better yet, Ghostscript. http://www.ibm.com/developerworks/library/l-graf2/#N101C2 has an example for imagemagick: convert foo.pdf pages-%03d.tiff http://www.asmail.be/msg0055376363.html has an example for ghostscript: gs -q -dNOPAUSE -sDEVICE=tiffg4 -sOutputFile=a.tif foo.pdf -c quit I would install ghostscript and read the man page for gs to see what exact options are needed and experiment.
You can use pdftk, it’s a handy tool for manipulating PDF documents. sudo apt-get –yes install pdftk pdftk foo-bar.pdf cat 1-12 output foo.pdf pdftk foo-bar.pdf cat 13-end output bar.pdf You can use this method to split a PDF in N ways, or to remove pages. For example, to remove page 13: pdftk in.pdf cat 1-12 … Read more
Here is a link to Adobe’s reference material http://www.adobe.com/devnet/pdf/pdf_reference.html You should know though that PDF is only about presentation, not structure. Parsing will not come easy.
First, get Pdftk: sudo apt-get install pdftk Now, as shown on example page, use pdftk 1.pdf 2.pdf 3.pdf cat output 123.pdf for merging pdf files into one.
Use the –pdf-engine=xelatex option.
Make sure you checked “Scales page to fit”
Handy way: Using Browser Printing/Preview Hide editor pane Print Preview (I used firefox, others also fine) Change its page setup and print to pdf
Reducing the image size before output results in something that looks sharper, in my case: convert -density 300 a.pdf -resize 25% a.png
To make it work, I installed latex, typical latex extra, and pandoc. With ubuntu: sudo apt-get install texlive texlive-latex-extra pandoc it takes some times: several 100 Mb to download. I read somewhere that you can use –no-install-recommends for texlive and extra to reduce to the dl.