From 696ad947da322b80c04af035ac5c126524b5760f Mon Sep 17 00:00:00 2001
From: Shane Krueger <shane@acdmail.com>
Date: Thu, 26 Mar 2026 09:52:52 -0400
Subject: [PATCH 1/6] Fix EPS protocol violations in PostscriptQRCode: remove
 showpage and setpagedevice from EPS output

---
 QRCoder/PostscriptQRCode.cs                   | 59 ++++++++++++++-----
 ...nder_postscript_qrcode_colors.approved.txt | 18 +++---
 ..._render_postscript_qrcode_eps.approved.txt | 21 +++----
 ...nder_postscript_qrcode_simple.approved.txt | 18 +++---
 ...render_postscript_qrcode_size.approved.txt | 18 +++---
 ...pt_qrcode_size_no_quiet_zones.approved.txt | 18 +++---
 6 files changed, 88 insertions(+), 64 deletions(-)

diff --git a/QRCoder/PostscriptQRCode.cs b/QRCoder/PostscriptQRCode.cs
index 99f86065..b01d4e39 100644
--- 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
index 60e52670..0e27a8f8 100644
--- 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
index 6a4b0410..22a6bee6 100644
--- 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
index 0fd16ade..1b66e490 100644
--- 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
index 709bc3a1..25dc3f7d 100644
--- 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/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_size_no_quiet_zones.approved.txt b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_size_no_quiet_zones.approved.txt
index cc78b5a0..1ed6e783 100644
--- a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_size_no_quiet_zones.approved.txt
+++ b/QRCoderTests/PostscriptQRCodeRendererTests.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

From dc92dd11f4b901a9f7eeedd4068c6a8054071d3b Mon Sep 17 00:00:00 2001
From: Shane Krueger <shane@acdmail.com>
Date: Thu, 26 Mar 2026 10:09:01 -0400
Subject: [PATCH 2/6] Update TransposeVerificationTests postscript approval
 file for EPS/PS format fixes

---
 ...ationTests.postscript_renderer.approved.ps | Bin 2599 -> 2588 bytes
 1 file changed, 0 insertions(+), 0 deletions(-)

diff --git a/QRCoderTests/TransposeVerificationTests.postscript_renderer.approved.ps b/QRCoderTests/TransposeVerificationTests.postscript_renderer.approved.ps
index 52ac1b8ceecbda1be2135bae4cf3f469d1eb4582..389449adf51a1854f615936b26554b8a5c894702 100644
GIT binary patch
delta 103
zcmZ23GDn0@RWTq~*D)nODOJ~4&tM||l8IZcP3~swoGi+uZ^5Mi1cnL*3MEB}dBr)2
zC8=Ds3Mr{+T>43g$=T^e`K5U&3e`|mhCr3c#f7DbMX8$`nC7yxbE&Gj`nz!f0Bh17
AjQ{`u

delta 98
zcmbOuvRs5;RWTq~*D)nODOJ~4&p=@!-x5ZJiJPu5DopNR>;#g6O!`35fk{GHflEIr
sF*!TED8Do>MWI@OO92QB!7#bFur#qKRbg`l(_D6tIG3ubtG^o;06NPV>;M1&


From 5b7ca44f2faef4c8eb423a497ef388d665f874b0 Mon Sep 17 00:00:00 2001
From: Shane Krueger <shane@acdmail.com>
Date: Thu, 26 Mar 2026 10:34:42 -0400
Subject: [PATCH 3/6] Improve EPS DSC compliance: use standard prolog/setup
 sections and fix current-point leak

---
 QRCoder/PostscriptQRCode.cs                   | 58 ++++++++++++++++---
 ..._render_postscript_qrcode_eps.approved.txt | 14 ++---
 2 files changed, 58 insertions(+), 14 deletions(-)

diff --git a/QRCoder/PostscriptQRCode.cs b/QRCoder/PostscriptQRCode.cs
index b01d4e39..cfa14fcf 100644
--- a/QRCoder/PostscriptQRCode.cs
+++ b/QRCoder/PostscriptQRCode.cs
@@ -102,9 +102,10 @@ public string GetGraphic(Size viewBox, Color darkColor, Color lightColor, bool d
         var pointsPerModule = (double)Math.Min(viewBox.Width, viewBox.Height) / (double)drawableModulesCount;
 
         var header = epsFormat ? EPS_HEADER : PS_HEADER;
+        var functions = epsFormat ? EPS_FUNCTIONS : PS_FUNCTIONS;
         var footer = epsFormat ? EPS_FOOTER : PS_FOOTER;
 
-        var estimatedCapacity = header.Length + PS_FUNCTIONS.Length + footer.Length +
+        var estimatedCapacity = header.Length + functions.Length + footer.Length +
             (drawableModulesCount * drawableModulesCount * 2) + // modules (either "f " or "b ")
             drawableModulesCount * 3 + // newlines ("nl\n")
             200; // embedded numbers
@@ -113,10 +114,11 @@ public string GetGraphic(Size viewBox, Color darkColor, Color lightColor, bool d
         sb.AppendFormat(CultureInfo.InvariantCulture, header, [
             CleanSvgVal(viewBox.Width), CleanSvgVal(pointsPerModule)
         ]);
-        sb.AppendFormat(CultureInfo.InvariantCulture, PS_FUNCTIONS, [
+        sb.AppendFormat(CultureInfo.InvariantCulture, functions, [
             CleanSvgVal(darkColor.R /255.0), CleanSvgVal(darkColor.G /255.0), CleanSvgVal(darkColor.B /255.0),
             CleanSvgVal(lightColor.R /255.0), CleanSvgVal(lightColor.G /255.0), CleanSvgVal(lightColor.B /255.0),
-            drawableModulesCount
+            drawableModulesCount,
+            CleanSvgVal(viewBox.Width), CleanSvgVal(pointsPerModule)
         ]);
 
         for (int xi = offset; xi < offset + drawableModulesCount; xi++)
@@ -168,6 +170,7 @@ 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).
+    // Constants (sz, sc) and procedure definitions are emitted in EPS_FUNCTIONS below.
     private const string EPS_HEADER = """
         %!PS-Adobe-3.0 EPSF-3.0
         %%Creator: QRCoder.NET
@@ -177,10 +180,6 @@ public string GetGraphic(Size viewBox, Color darkColor, Color lightColor, bool d
         %%BoundingBox: 0 0 {0} {0}
         %%LanguageLevel: 2
         %%EndComments
-        %%BeginConstants
-        /sz {0} def
-        /sc {1} def
-        %%EndConstants
 
         """;
 
@@ -222,6 +221,51 @@ sc sc scale
 
         """;
 
+    // EPS variant: uses standard DSC %%BeginProlog/%%EndProlog for procedure definitions,
+    // %%BeginSetup/%%EndSetup for constants, and moves 0 0 moveto inside gsave so it does
+    // not leak the current point into the surrounding document.
+    private const string EPS_FUNCTIONS = """
+        %%BeginProlog
+        /csquare {{
+            newpath
+            0 0 moveto
+            0 1 rlineto
+            1 0 rlineto
+            0 -1 rlineto
+            closepath
+            setrgbcolor
+            fill
+        }} def
+        /f {{
+            {0} {1} {2} csquare
+            1 0 translate
+        }} def
+        /b {{
+            1 0 translate
+        }} def
+        /background {{
+            {3} {4} {5} csquare
+        }} def
+        /nl {{
+            -{6} -1 translate
+        }} def
+        %%EndProlog
+        %%BeginSetup
+        /sz {7} def
+        /sc {8} def
+        %%EndSetup
+        %%BeginBody
+        gsave
+        0 0 moveto
+        sz sz scale
+        background
+        grestore
+        gsave
+        sc sc scale
+        0 {6} 1 sub translate
+
+        """;
+
     // Standard PostScript footer — showpage is required for standalone PS documents.
     private const string PS_FOOTER = """
         %%EndBody
diff --git a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
index 22a6bee6..7de24e0a 100644
--- a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
+++ b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
@@ -6,11 +6,7 @@
 %%BoundingBox: 0 0 165 165
 %%LanguageLevel: 2
 %%EndComments
-%%BeginConstants
-/sz 165 def
-/sc 5 def
-%%EndConstants
-%%BeginFunctions
+%%BeginProlog
 /csquare {
     newpath
     0 0 moveto
@@ -34,10 +30,14 @@
 /nl {
     -33 -1 translate
 } def
-%%EndFunctions
+%%EndProlog
+%%BeginSetup
+/sz 165 def
+/sc 5 def
+%%EndSetup
 %%BeginBody
-0 0 moveto
 gsave
+0 0 moveto
 sz sz scale
 background
 grestore

From a520e930ff448c5ecd82c7875741d2ac634a43cf Mon Sep 17 00:00:00 2001
From: Shane Krueger <shane@acdmail.com>
Date: Thu, 26 Mar 2026 10:43:15 -0400
Subject: [PATCH 4/6] Use private dictionary in EPS prolog to prevent name
 collisions in host document

---
 QRCoder/PostscriptQRCode.cs                                  | 5 +++--
 ...ndererTests.can_render_postscript_qrcode_eps.approved.txt | 4 ++--
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/QRCoder/PostscriptQRCode.cs b/QRCoder/PostscriptQRCode.cs
index cfa14fcf..bf4cef13 100644
--- a/QRCoder/PostscriptQRCode.cs
+++ b/QRCoder/PostscriptQRCode.cs
@@ -226,6 +226,7 @@ sc sc scale
     // not leak the current point into the surrounding document.
     private const string EPS_FUNCTIONS = """
         %%BeginProlog
+        5 dict begin
         /csquare {{
             newpath
             0 0 moveto
@@ -254,7 +255,6 @@ 1 0 translate
         /sz {7} def
         /sc {8} def
         %%EndSetup
-        %%BeginBody
         gsave
         0 0 moveto
         sz sz scale
@@ -276,9 +276,10 @@ sc sc scale
         """;
 
     // EPS footer — showpage is forbidden in EPS files (Adobe Technical Note #5002).
+    // 'end' pops the private dictionary pushed in %%BeginProlog to avoid polluting the host dict stack.
     private const string EPS_FOOTER = """
-        %%EndBody
         grestore
+        end
         %%EOF
 
         """;
diff --git a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
index 7de24e0a..beb5b8b3 100644
--- a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
+++ b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
@@ -7,6 +7,7 @@
 %%LanguageLevel: 2
 %%EndComments
 %%BeginProlog
+5 dict begin
 /csquare {
     newpath
     0 0 moveto
@@ -35,7 +36,6 @@
 /sz 165 def
 /sc 5 def
 %%EndSetup
-%%BeginBody
 gsave
 0 0 moveto
 sz sz scale
@@ -77,6 +77,6 @@ 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 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 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
+end
 %%EOF

From ab32b8c6f02815200516658991b54c3e8c9f1e87 Mon Sep 17 00:00:00 2001
From: Shane Krueger <shane@acdmail.com>
Date: Thu, 26 Mar 2026 10:53:42 -0400
Subject: [PATCH 5/6] Remove %%Origin from EPS header (not applicable to EPS
 files)

---
 QRCoder/PostscriptQRCode.cs                                      | 1 -
 ...deRendererTests.can_render_postscript_qrcode_eps.approved.txt | 1 -
 2 files changed, 2 deletions(-)

diff --git a/QRCoder/PostscriptQRCode.cs b/QRCoder/PostscriptQRCode.cs
index bf4cef13..11a21195 100644
--- a/QRCoder/PostscriptQRCode.cs
+++ b/QRCoder/PostscriptQRCode.cs
@@ -176,7 +176,6 @@ public string GetGraphic(Size viewBox, Color darkColor, Color lightColor, bool d
         %%Creator: QRCoder.NET
         %%Title: QRCode
         %%DocumentData: Clean7Bit
-        %%Origin: 0
         %%BoundingBox: 0 0 {0} {0}
         %%LanguageLevel: 2
         %%EndComments
diff --git a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
index beb5b8b3..91579a81 100644
--- a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
+++ b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
@@ -2,7 +2,6 @@
 %%Creator: QRCoder.NET
 %%Title: QRCode
 %%DocumentData: Clean7Bit
-%%Origin: 0
 %%BoundingBox: 0 0 165 165
 %%LanguageLevel: 2
 %%EndComments

From 306d3b40f87a41cf42e018ec73fdaac3a9594f02 Mon Sep 17 00:00:00 2001
From: Shane Krueger <shane@acdmail.com>
Date: Thu, 26 Mar 2026 11:00:24 -0400
Subject: [PATCH 6/6] Fix EPS private dictionary size from 5 to 7 (includes sz
 and sc)

---
 QRCoder/PostscriptQRCode.cs                                     | 2 +-
 ...eRendererTests.can_render_postscript_qrcode_eps.approved.txt | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/QRCoder/PostscriptQRCode.cs b/QRCoder/PostscriptQRCode.cs
index 11a21195..03c47ef3 100644
--- a/QRCoder/PostscriptQRCode.cs
+++ b/QRCoder/PostscriptQRCode.cs
@@ -225,7 +225,7 @@ sc sc scale
     // not leak the current point into the surrounding document.
     private const string EPS_FUNCTIONS = """
         %%BeginProlog
-        5 dict begin
+        7 dict begin
         /csquare {{
             newpath
             0 0 moveto
diff --git a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
index 91579a81..e73fdf96 100644
--- a/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
+++ b/QRCoderTests/PostscriptQRCodeRendererTests.can_render_postscript_qrcode_eps.approved.txt
@@ -6,7 +6,7 @@
 %%LanguageLevel: 2
 %%EndComments
 %%BeginProlog
-5 dict begin
+7 dict begin
 /csquare {
     newpath
     0 0 moveto