If I compile the main.tex using overleaf and the latex files compile to a 6mb pdf. I use the same engine to compile the pdf on local machine using pdflatex and I get 140mb pdf file. The problem happens only when using the package:
\usepackage[accsupp]{axessibility}
But the problem happens only locally with the above package and not on overleaf
The source files and assets (like images) combined are just a few mbs. I am having a hard time understanding where the issue is.
Here is how much of TeX's memory you used:
14128 strings out of 481239
231003 string characters out of 5920377
544979 words of memory out of 5000000
28581 multiletter control sequences out of 15000+600000
589840 words of font info for 350 fonts, out of 8000000 for 9000
1141 hyphenation exceptions out of 8191
49i,12n,46p,1246b,525s stack positions out of 5000i,500n,10000p,200000b,80000s
{/usr/share/texlive/texmf-dist/fonts/enc/dvips/base/8r.enc}</usr/share/texliv
e/texmf-dist/fonts/type1/public/amsfonts/cm/cmbsy10.pfb></usr/share/texlive/tex
mf-dist/fonts/type1/public/amsfonts/cm/cmex10.pfb></usr/share/texlive/texmf-dis
t/fonts/type1/public/amsfonts/cm/cmmi10.pfb></usr/share/texlive/texmf-dist/font
s/type1/public/amsfonts/cm/cmmi5.pfb></usr/share/texlive/texmf-dist/fonts/type1
/public/amsfonts/cm/cmmi6.pfb></usr/share/texlive/texmf-dist/fonts/type1/public
/amsfonts/cm/cmmi7.pfb></usr/share/texlive/texmf-dist/fonts/type1/public/amsfon
ts/cm/cmmi9.pfb></usr/share/texlive/texmf-dist/fonts/type1/public/amsfonts/cm/c
mr10.pfb></usr/share/texlive/texmf-dist/fonts/type1/public/amsfonts/cm/cmr5.pfb
></usr/share/texlive/texmf-dist/fonts/type1/public/amsfonts/cm/cmr6.pfb></usr/s
hare/texlive/texmf-dist/fonts/type1/public/amsfonts/cm/cmr7.pfb></usr/share/tex
live/texmf-dist/fonts/type1/public/amsfonts/cm/cmr9.pfb></usr/share/texlive/tex
mf-dist/fonts/type1/public/amsfonts/cm/cmsy10.pfb></usr/share/texlive/texmf-dis
t/fonts/type1/public/amsfonts/cm/cmsy7.pfb></usr/share/texlive/texmf-dist/fonts
/type1/public/amsfonts/cm/cmsy9.pfb></usr/share/texlive/texmf-dist/fonts/type1/
public/amsfonts/symbols/msbm10.pfb></usr/share/texlive/texmf-dist/fonts/type1/u
rw/courier/ucrr8a.pfb></usr/share/texlive/texmf-dist/fonts/type1/urw/times/utmb
8a.pfb></usr/share/texlive/texmf-dist/fonts/type1/urw/times/utmbi8a.pfb></usr/s
hare/texlive/texmf-dist/fonts/type1/urw/times/utmr8a.pfb></usr/share/texlive/te
xmf-dist/fonts/type1/urw/times/utmri8a.pfb>
Output written on main.pdf (18 pages, 149582541 bytes).
PDF statistics:
624 PDF objects out of 1000 (max. 8388607)
502 compressed objects within 6 object streams
127 named destinations out of 1000 (max. 500000)
39728 words of extra memory for PDF output out of 42996 (max. 10000000)
Best Answer
The source code on arxiv loads
\usepackage[accsupp]{axessibility}and that package forces the creation of an uncompressed pdf.The package is quite quite experimental and should be used only with great care.