diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ea1317..77d8ad0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 - Option to mix levels adjustment with original
 - Removed "a" flag from trash command
+- Tweak to PNG dimensions
 
 [0.9.0.1]
 
diff --git a/leaf.php b/leaf.php
index d3613d4..8561701 100644
--- a/leaf.php
+++ b/leaf.php
@@ -154,7 +154,7 @@ function fin($print = null) {
 	if (isset($print)) {
 		echo "\n".$print;
 		}
-	$finished = "\nFinished in ".floor($time = microtime(true)-$_SERVER["REQUEST_TIME_FLOAT"])." seconds\n\n";
+	$finished = "\nFinished in ".round($time = microtime(true)-$_SERVER["REQUEST_TIME_FLOAT"])." seconds\n\n";
 	file_put_contents("leaf.log",$finished,FILE_APPEND);
 	die;
 	}
@@ -806,28 +806,29 @@ $ratioavg = number_format(array_sum($dims)/count($dims),3);
 echo "Average page ratio: ".$ratioavg;
 if ($ratioavg > 1) { // page is tall
 	$page_height = $pixels;
-	$page_width = floor($page_height/$ratioavg);
+	$page_width = round($page_height/$ratioavg);
 	$paper_height = $inches;
 	$paper_width = number_format($paper_height/$ratioavg,2);
 	} else {
 	$page_width = $pixels;
-	$page_height = floor($page_width*$ratioavg);
+	$page_height = round($page_width*$ratioavg);
 	$paper_width = $inches;
 	$paper_height = number_format($paper_width*$ratioavg,2);
 	}
 
-$dpi = number_format($page_height/$paper_height,2);
-$canonicalpngdpi = number_format($dpi*$multiplier,2);
-$pngdpi = $canonicalpngdpi*39.37007874016;
+$dpi = round($page_height/$paper_height,3);
+$canonicalpngdpi = round($dpi)*$multiplier;
+$pngdpi = round($canonicalpngdpi*39.37007874016);
 $dims = $page_width."x".$page_height;
-$pngdims = ($page_width*$multiplier)."x".($page_height*$multiplier);
+// png dpi does not accept decimal points, so we will adjust the png dims slightly to better match jpg size
+$pngdims = (round($canonicalpngdpi*$paper_width))."x".(round($canonicalpngdpi*$paper_height));
 
 echo "\n";
 echo "Page size: ".$paper_width."\" x ".$paper_height."\"";
 echo "\n";
 echo "Target pixel dimensions: ".$dims." (png=".$pngdims.")";
 echo "\n";
-echo "DPI = ".$dpi." (png=".$canonicalpngdpi.")";
+echo "DPI = ".$dpi." (png=".$pngdpi.")";
 
 foreach ($color as $parts) {
 	$jpg[] = $parts;
@@ -893,7 +894,7 @@ foreach ($jpg as $parts) {
 		$levelcmd .= "-modulate ".args("modulate")." ";
 		}
 
-	if (args("mix") && $levelcmd) {
+	if (args("mix") && $levelcmd && $iscolor) {
 		// if this is a mix, we reset the $cmd so we can nest the levels command and mix with og
 		$msg .= " <MIX=".args("mix").">";
 		$cmd = "convert \( ".$file." -resize ".$dims."\! ".$levelcmd."\) \( ".$file." -resize ".$dims."\! \) -define compose:args=".args("mix")." -compose blend -composite ";
@@ -909,7 +910,7 @@ foreach ($jpg as $parts) {
 	$msg .= " [Q=".$quality."]";
 	$cmd .= "-quality ".$quality." ";
 	
-	if (args("mix") && $levelcmd) {
+	if (args("mix") && $levelcmd && $iscolor) {
 		$cmd .= $output;
 		} else {
 		$cmd .= $file." ".$output;
@@ -1588,7 +1589,7 @@ foreach ($files as $file) {
 		}
 	$print[] = bashcolor($attr['Image Width']."x".$attr['Image Height'], $color);
 	if (isset($attr['X Resolution'])) {
-		$print[] = bashcolor(floor($attr['X Resolution']).":".floor($attr['Y Resolution']), "brown");
+		$print[] = bashcolor(round($attr['X Resolution']).":".round($attr['Y Resolution']), "brown");
 		$width = number_format($attr['Image Width']/$attr['X Resolution'],2);
 		$height = number_format($attr['Image Height']/$attr['Y Resolution'],2);
 		$print[] = bashcolor($width."\" x ".$height."\"", "white", "black");
@@ -1836,7 +1837,7 @@ foreach ($files as $file) {
 	$ext = pathinfo($file, PATHINFO_EXTENSION);
 	if (isset($height)) {
 		list ($imwidth, $imheight) = getimagesize($file);
-		$x = floor($imheight/$height);
+		$x = round($imheight/$height);
 		}
 	if ($ext == "jpg" || $ext == "JPG") {
 		exec("exiftool -overwrite_original -Xresolution=".$x." -Yresolution=".$x." -jfif:Xresolution=".$x." -jfif:Yresolution=".$x." ".$file);