[Tex/LaTex] pdf crop utility for windows that will give smaller files

fancytooltipsfile sizepdfcropwindows

The answers to this question contain pdf cropping utilities that will give smaller files than Eric Doviak's original, but as far as I can tell they only work in Linux.

Is there a way to make them work in Windows, or an equivalent native utility? I also need to be able to run it from command line.

(Motivation: I managed to get fancy-preview running for my dissertation, but it turns my 50-page dissertation from a compact 1MB into 10MB. I understand this as due to a large number of uncompressed tooltips being embedded, and would like to avoid that.)

Best Answer

Check out PDF manipulation tips, Part 1. I haven't used this functionality before myself, but ghostscript can apparently handle this from the command line with:

gswin32c.exe -sDEVICE=pdfwrite -dMaxSubsetPct=100 -dPDFSETTINGS=/ebook -sOutputFile="outfile.pdf" -dNOPAUSE -dBATCH "infile.pdf"

where -dPDFSETTINGS is used to define how images are resampled. Using -dPDFSETTINGS=/screen will yield dpi=72. I just tried this with a sample pdf and it seems to work fine.

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[Tex/LaTex] How to create small PDF files for the Internet

There are a number of tricks for getting optimized pdfs. Many of them are implemented in the tool pdfsizeopt. With some patches (posted in the pdfsizeopt bugtracker) this tool can run on all my tex-generated pdfs (and nearly all of the non-tex-generated ones). I use the commandline:

python ./pdfsizeopt.py --use-pngout=true --use-jbig2=true --use-multivalent=true --do-unify-fonts=false filetocompress.pdf

I use --do-unify-fonts=false even though it produces slightly larger pdfs, because of a bug where a few glyphs are not displayed with certain pdf viewers (windows adobe reader, for example).

There are indeed various things you can do during document production with tex, to make sure that the compressed pdf ends up as small as possible: several of these are discussed in the EuroTeX 2009 White paper about pdfsizeopt (available at https://github.com/pts/pdfsizeopt/releases/download/docs-v1/pts_pdfsizeopt2009.psom.pdf).

As regards fonts, pdfsizeopt will recode fonts to the very compressed CFF format, and take care of subsetting and duplication issues. I haven't investigated deeply, but in my tests it seems that of the 2 options for type 1 encoded T1 (multilingual) tex fonts, the Latin Modern fonts generally produce significantly larger PDFs than the CM-Super version (which is unfortunate, because Latin Modern is superior in just about every other way (see this question). I just did a quick experiment and this difference in size seems to be only for the pre-pdfsizeopt pdfs: after pdfsizeopt, Latin Modern is the same or smaller than CM-Super.

Using fonts that don't have optical scaling will indeed produce a smaller PDF, but I don't recommend it because if you are using multiple sizes then the non-optically scaled fonts will look much worse.

[Tex/LaTex] n equation editor for Windows

This list might be a good place to start. The third item on the list, KLatexFormula, looks promising.

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