This is a follow-up to Included png appears too big in PDF, but it's a separate issue so I'll put it in its own question instead of burying it in comments.
The problem: an included PNG, included without scaling, appears blurry in the PDF, as if the PDF has run it through a lossy compression.
I have tried multiple times with different values for either \pdfimageresolution
or \includegraphics[width=...,height=...]
added to the source below but no luck.
Is there any way I can check log compresses the image as it appears to do?
And to be thorough, I'm looking at the PDF in Foxit 3.2 at 1:1 zoom.
\documentclass[12pt]{article}
\usepackage[letterpaper]{geometry}
\geometry{top=1.0in, bottom=1.0in, left=1.5in, right=1.0in}
\usepackage{graphicx}
\begin{figure}
\includegraphics{chart}\\ % line 35
\caption{Adjusted Relative Risk (RR)}\label{mylabel} % line 36
\end{figure}
Log is:
Command Line: texify.exe --pdf --tex-option=--synctex=-1 "C:\Documents and Settings\myself\Application Data\WinEdt Team\WinEdt 6\RW\test1.tex"
Startup Folder: C:\Documents and Settings\myself\Application Data\WinEdt Team\WinEdt 6\RW
This is pdfTeX, Version 3.1415926-1.40.10 (MiKTeX 2.8)
entering extended mode
("C:/Documents and Settings/myself/Application Data/WinEdt Team/WinEdt 6/RW/t
est1.tex"
LaTeX2e <2009/09/24>
Babel <v3.8l> and hyphenation patterns for english, dumylang, nohyphenation, ge
rman, ngerman, german-x-2009-06-19, ngerman-x-2009-06-19, french, loaded.
(C:\MiKTeX\tex\latex\base\article.cls
Document Class: article 2007/10/19 v1.4h Standard LaTeX document class
(C:\MiKTeX\tex\latex\base\size12.clo)) (C:\MiKTeX\tex\generic\babel\babel.sty
*************************************
* Local config file bblopts.cfg used
*
(C:\MiKTeX\tex\latex\00miktex\bblopts.cfg)
(C:\MiKTeX\tex\generic\babel\english.ldf (C:\MiKTeX\tex\generic\babel\babel.def
))) (C:\MiKTeX\tex\latex\graphics\graphicx.sty
(C:\MiKTeX\tex\latex\graphics\keyval.sty)
(C:\MiKTeX\tex\latex\graphics\graphics.sty
(C:\MiKTeX\tex\latex\graphics\trig.sty)
(C:\MiKTeX\tex\latex\00miktex\graphics.cfg)
(C:\MiKTeX\tex\latex\pdftex-def\pdftex.def)))
(C:\MiKTeX\tex\latex\geometry\geometry.sty
(C:\MiKTeX\tex\generic\oberdiek\ifpdf.sty)
(C:\MiKTeX\tex\generic\oberdiek\ifvtex.sty)
(C:\MiKTeX\tex\latex\geometry\geometry.cfg))
(C:\MiKTeX\tex\latex\base\flafter.sty)
(C:\MiKTeX\tex\latex\setspace\setspace.sty
Package: `setspace' 6.7 <2000/12/01>
)
("C:\Documents and Settings\myself\Application Data\WinEdt Team\WinEdt 6\RW\t
est1.aux") (C:\MiKTeX\tex\context\base\supp-pdf.tex
[Loading MPS to PDF converter (version 2006.09.02).]
)
*geometry* driver: auto-detecting
*geometry* detected driver: pdftex
[1{C:/MiKTeX/pdftex/config/pdftex.map}] [2]
<chart.png, id=15, 362.11884pt x 257.55798pt> <use chart.png>
Underfull \hbox (badness 10000) in paragraph at lines 37--38
[3] [4 <C:/Documents and Settings/myself/Application Data/WinEdt Team/WinEdt
6/RW/chart.png (PNG copy)>]
("C:\Documents and Settings\myself\Application Data\WinEdt Team\WinEdt 6\RW\t
est1.aux") )
(see the transcript file for additional information)<C:/MiKTeX/fonts/type1/publ
ic/amsfonts/cm/cmbx12.pfb><C:/MiKTeX/fonts/type1/public/amsfonts/cm/cmr10.pfb><
C:/MiKTeX/fonts/type1/public/amsfonts/cm/cmr12.pfb><C:/MiKTeX/fonts/type1/publi
c/amsfonts/cm/cmr17.pfb><C:/MiKTeX/fonts/type1/public/amsfonts/cm/cmr7.pfb><C:/
MiKTeX/fonts/type1/public/amsfonts/cm/cmr8.pfb><C:/MiKTeX/fonts/type1/public/am
sfonts/cm/cmti10.pfb>
Output written on test1.pdf (4 pages, 100135 bytes).
SyncTeX written on test1.synctex
Transcript written on test1.log.
Clarification: The blurriness is visible on-screen when looking at the PDF at 1:1 zoom. I haven't printed it.