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-rw-r--r--source/fitz/pixmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/source/fitz/pixmap.c b/source/fitz/pixmap.c
index 8692a468..3c99d724 100644
--- a/source/fitz/pixmap.c
+++ b/source/fitz/pixmap.c
@@ -817,7 +817,7 @@ fz_image_as_png(fz_context *ctx, fz_image *image, int w, int h)
fz_try(ctx)
{
- if (pix->colorspace != fz_device_gray(ctx) || pix->colorspace != fz_device_rgb(ctx))
+ if (pix->colorspace && pix->colorspace != fz_device_gray(ctx) && pix->colorspace != fz_device_rgb(ctx))
{
fz_pixmap *pix2 = fz_new_pixmap(ctx, fz_device_rgb(ctx), pix->w, pix->h);
fz_convert_pixmap(ctx, pix2, pix);