Shane32 · Shane32 · Mar 27, 2026 · Mar 26, 2026 · Mar 26, 2026 · Mar 26, 2026
diff --git a/QRCoder/PostscriptQRCode.cs b/QRCoder/PostscriptQRCode.cs
@@ -101,15 +101,17 @@ public string GetGraphic(Size viewBox, Color darkColor, Color lightColor, bool d
         var drawableModulesCount = QrCodeData.ModuleMatrix.Count - (drawQuietZones ? 0 : offset * 2);
         var pointsPerModule = (double)Math.Min(viewBox.Width, viewBox.Height) / (double)drawableModulesCount;
 
-        var estimatedCapacity = PS_HEADER.Length + PS_FUNCTIONS.Length + PS_FOOTER.Length +
+        var header = epsFormat ? EPS_HEADER : PS_HEADER;
+        var footer = epsFormat ? EPS_FOOTER : PS_FOOTER;
+
+        var estimatedCapacity = header.Length + PS_FUNCTIONS.Length + footer.Length +
             (drawableModulesCount * drawableModulesCount * 2) + // modules (either "f " or "b ")
             drawableModulesCount * 3 + // newlines ("nl\n")
             200; // embedded numbers
         var sb = new StringBuilder(estimatedCapacity);
 
-        sb.AppendFormat(CultureInfo.InvariantCulture, PS_HEADER, [
-            CleanSvgVal(viewBox.Width), CleanSvgVal(pointsPerModule),
-            epsFormat ? "EPSF-3.0" : string.Empty
+        sb.AppendFormat(CultureInfo.InvariantCulture, header, [
+            CleanSvgVal(viewBox.Width), CleanSvgVal(pointsPerModule)
         ]);
         sb.AppendFormat(CultureInfo.InvariantCulture, PS_FUNCTIONS, [
             CleanSvgVal(darkColor.R /255.0), CleanSvgVal(darkColor.G /255.0), CleanSvgVal(darkColor.B /255.0),
@@ -127,7 +129,7 @@ public string GetGraphic(Size viewBox, Color darkColor, Color lightColor, bool d
             }
         }
         sb.Append('\n');
-        sb.Append(PS_FOOTER);
+        sb.Append(footer);
         return sb.ToString();
     }
 
@@ -140,15 +142,17 @@ public string GetGraphic(Size viewBox, Color darkColor, Color lightColor, bool d
 
     // Note: line terminations here will encode differently based on which platform QRCoder was compiled on (CRLF vs LF);
     // however, PostScript interpreters should handle both equally well.
+
+    // Standard PostScript header — includes media/page setup and setpagedevice (valid for standalone PS documents).
     private const string PS_HEADER = """
-        %!PS-Adobe-3.0 {2}
+        %!PS-Adobe-3.0
         %%Creator: QRCoder.NET
         %%Title: QRCode
         %%DocumentData: Clean7Bit
         %%Origin: 0
         %%DocumentMedia: Default {0} {0} 0 () ()
         %%BoundingBox: 0 0 {0} {0}
-        %%LanguageLevel: 2 
+        %%LanguageLevel: 2
         %%Pages: 1
         %%Page: 1 1
         %%EndComments
@@ -162,8 +166,26 @@ public string GetGraphic(Size viewBox, Color darkColor, Color lightColor, bool d
 
         """;
 
+    // EPS header — omits %%DocumentMedia, %%Pages, %%Page, and setpagedevice, all of which are
+    // forbidden or inappropriate in Encapsulated PostScript (Adobe Technical Note #5002).
+    private const string EPS_HEADER = """
+        %!PS-Adobe-3.0 EPSF-3.0
+        %%Creator: QRCoder.NET
+        %%Title: QRCode
+        %%DocumentData: Clean7Bit
+        %%Origin: 0
+        %%BoundingBox: 0 0 {0} {0}
+        %%LanguageLevel: 2
+        %%EndComments
+        %%BeginConstants
+        /sz {0} def
+        /sc {1} def
+        %%EndConstants
+
+        """;
+
     private const string PS_FUNCTIONS = """
-        %%BeginFunctions 
+        %%BeginFunctions
         /csquare {{
             newpath
             0 0 moveto
@@ -174,15 +196,15 @@ 1 0 rlineto
             setrgbcolor
             fill
         }} def
-        /f {{ 
+        /f {{
             {0} {1} {2} csquare
             1 0 translate
         }} def
-        /b {{ 
+        /b {{
             1 0 translate
-        }} def 
-        /background {{ 
-            {3} {4} {5} csquare 
+        }} def
+        /background {{
+            {3} {4} {5} csquare
         }} def
         /nl {{
             -{6} -1 translate
@@ -200,10 +222,19 @@ sc sc scale
 
         """;
 
+    // Standard PostScript footer — showpage is required for standalone PS documents.
     private const string PS_FOOTER = """
         %%EndBody
         grestore
-        showpage   
+        showpage
+        %%EOF
+
+        """;
+
+    // EPS footer — showpage is forbidden in EPS files (Adobe Technical Note #5002).
+    private const string EPS_FOOTER = """
+        %%EndBody
+        grestore
         %%EOF
 
         """;

diff --git a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_colors.approved.txt b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_colors.approved.txt
@@ -1,11 +1,11 @@
-%!PS-Adobe-3.0 
+%!PS-Adobe-3.0
 %%Creator: QRCoder.NET
 %%Title: QRCode
 %%DocumentData: Clean7Bit
 %%Origin: 0
 %%DocumentMedia: Default 165 165 0 () ()
 %%BoundingBox: 0 0 165 165
-%%LanguageLevel: 2 
+%%LanguageLevel: 2
 %%Pages: 1
 %%Page: 1 1
 %%EndComments
@@ -16,7 +16,7 @@
 %%BeginFeature: *PageSize Default
 << /PageSize [ sz sz ] /ImagingBBox null >> setpagedevice
 %%EndFeature
-%%BeginFunctions 
+%%BeginFunctions
 /csquare {
     newpath
     0 0 moveto
@@ -27,15 +27,15 @@
     setrgbcolor
     fill
 } def
-/f { 
+/f {
     1 0 0 csquare
     1 0 translate
 } def
-/b { 
+/b {
     1 0 translate
-} def 
-/background { 
-    0 0 1 csquare 
+} def
+/background {
+    0 0 1 csquare
 } def
 /nl {
     -33 -1 translate
@@ -85,5 +85,5 @@ b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b nl
 b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b 
 %%EndBody
 grestore
-showpage   
+showpage
 %%EOF
diff --git a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
@@ -3,20 +3,14 @@
 %%Title: QRCode
 %%DocumentData: Clean7Bit
 %%Origin: 0
-%%DocumentMedia: Default 165 165 0 () ()
 %%BoundingBox: 0 0 165 165
-%%LanguageLevel: 2 
-%%Pages: 1
-%%Page: 1 1
+%%LanguageLevel: 2
 %%EndComments
 %%BeginConstants
 /sz 165 def
 /sc 5 def
 %%EndConstants
-%%BeginFeature: *PageSize Default
-<< /PageSize [ sz sz ] /ImagingBBox null >> setpagedevice
-%%EndFeature
-%%BeginFunctions 
+%%BeginFunctions
 /csquare {
     newpath
     0 0 moveto
@@ -27,15 +21,15 @@
     setrgbcolor
     fill
 } def
-/f { 
+/f {
     0 0 0 csquare
     1 0 translate
 } def
-/b { 
+/b {
     1 0 translate
-} def 
-/background { 
-    1 1 1 csquare 
+} def
+/background {
+    1 1 1 csquare
 } def
 /nl {
     -33 -1 translate
@@ -85,5 +79,4 @@ b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b nl
 b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b 
 %%EndBody
 grestore
-showpage   
 %%EOF
diff --git a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_simple.approved.txt b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_simple.approved.txt
@@ -1,11 +1,11 @@
-%!PS-Adobe-3.0 
+%!PS-Adobe-3.0
 %%Creator: QRCoder.NET
 %%Title: QRCode
 %%DocumentData: Clean7Bit
 %%Origin: 0
 %%DocumentMedia: Default 165 165 0 () ()
 %%BoundingBox: 0 0 165 165
-%%LanguageLevel: 2 
+%%LanguageLevel: 2
 %%Pages: 1
 %%Page: 1 1
 %%EndComments
@@ -16,7 +16,7 @@
 %%BeginFeature: *PageSize Default
 << /PageSize [ sz sz ] /ImagingBBox null >> setpagedevice
 %%EndFeature
-%%BeginFunctions 
+%%BeginFunctions
 /csquare {
     newpath
     0 0 moveto
@@ -27,15 +27,15 @@
     setrgbcolor
     fill
 } def
-/f { 
+/f {
     0 0 0 csquare
     1 0 translate
 } def
-/b { 
+/b {
     1 0 translate
-} def 
-/background { 
-    1 1 1 csquare 
+} def
+/background {
+    1 1 1 csquare
 } def
 /nl {
     -33 -1 translate
@@ -85,5 +85,5 @@ b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b nl
 b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b 
 %%EndBody
 grestore
-showpage   
+showpage
 %%EOF
diff --git a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_size.approved.txt b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_size.approved.txt
@@ -1,11 +1,11 @@
-%!PS-Adobe-3.0 
+%!PS-Adobe-3.0
 %%Creator: QRCoder.NET
 %%Title: QRCode
 %%DocumentData: Clean7Bit
 %%Origin: 0
 %%DocumentMedia: Default 33 33 0 () ()
 %%BoundingBox: 0 0 33 33
-%%LanguageLevel: 2 
+%%LanguageLevel: 2
 %%Pages: 1
 %%Page: 1 1
 %%EndComments
@@ -16,7 +16,7 @@
 %%BeginFeature: *PageSize Default
 << /PageSize [ sz sz ] /ImagingBBox null >> setpagedevice
 %%EndFeature
-%%BeginFunctions 
+%%BeginFunctions
 /csquare {
     newpath
     0 0 moveto
@@ -27,15 +27,15 @@
     setrgbcolor
     fill
 } def
-/f { 
+/f {
     0 0 0 csquare
     1 0 translate
 } def
-/b { 
+/b {
     1 0 translate
-} def 
-/background { 
-    1 1 1 csquare 
+} def
+/background {
+    1 1 1 csquare
 } def
 /nl {
     -33 -1 translate
@@ -85,5 +85,5 @@ b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b nl
 b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b b 
 %%EndBody
 grestore
-showpage   
+showpage
 %%EOF
diff --git a/...stscriptQRCodeRendererTests.can_render_postscript_qrcode_size_no_quiet_zones.approved.txt b/...stscriptQRCodeRendererTests.can_render_postscript_qrcode_size_no_quiet_zones.approved.txt
@@ -1,11 +1,11 @@
-%!PS-Adobe-3.0 
+%!PS-Adobe-3.0
 %%Creator: QRCoder.NET
 %%Title: QRCode
 %%DocumentData: Clean7Bit
 %%Origin: 0
 %%DocumentMedia: Default 50 50 0 () ()
 %%BoundingBox: 0 0 50 50
-%%LanguageLevel: 2 
+%%LanguageLevel: 2
 %%Pages: 1
 %%Page: 1 1
 %%EndComments
@@ -16,7 +16,7 @@
 %%BeginFeature: *PageSize Default
 << /PageSize [ sz sz ] /ImagingBBox null >> setpagedevice
 %%EndFeature
-%%BeginFunctions 
+%%BeginFunctions
 /csquare {
     newpath
     0 0 moveto
@@ -27,15 +27,15 @@
     setrgbcolor
     fill
 } def
-/f { 
+/f {
     0 0 0 csquare
     1 0 translate
 } def
-/b { 
+/b {
     1 0 translate
-} def 
-/background { 
-    1 1 1 csquare 
+} def
+/background {
+    1 1 1 csquare
 } def
 /nl {
     -25 -1 translate
@@ -77,5 +77,5 @@ f b b b b b f b f f f f b f f b b f b b f f f b b nl
 f f f f f f f b f b b b b f b b b f f b b b f f f 
 %%EndBody
 grestore
-showpage   
+showpage
 %%EOF