From ac5bf4250fbfeb65ceaf37260e5c76e101696ffd Mon Sep 17 00:00:00 2001
From: "freedesktop.mrbax" <freedesktop.mrbax@bugs.freedesktop.org>
Date: Sat, 12 Dec 2020 22:08:47 +0100
Subject: [PATCH] pdfimages: Account for rotation in PPI calculation
Closes: https://gitlab.freedesktop.org/poppler/poppler/-/issues/3
---
utils/ImageOutputDev.cc | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/utils/ImageOutputDev.cc b/utils/ImageOutputDev.cc
index 552a3b15e..4ca2ff9d9 100644
--- a/utils/ImageOutputDev.cc
+++ b/utils/ImageOutputDev.cc
@@ -227,10 +227,10 @@ void ImageOutputDev::listImage(GfxState *state, Object *ref, Stream *str, int wi
}
const double *mat = state->getCTM();
- double width2 = mat[0] + mat[2];
- double height2 = mat[1] + mat[3];
- double xppi = fabs(width * 72.0 / width2) + 0.5;
- double yppi = fabs(height * 72.0 / height2) + 0.5;
+ double width2 = sqrt(mat[0] * mat[0] + mat[1] * mat[1]);
+ double height2 = sqrt(mat[2] * mat[2] + mat[3] * mat[3]);
+ double xppi = fabs(width * 72.0 / width2);
+ double yppi = fabs(height * 72.0 / height2);
if (xppi < 1.0)
printf("%5.3f ", xppi);
else
--
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