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index a8ac187e..bb461c94 100644
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+<!-- t2&#45;&gt;t3 -->
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+<title>t2&#45;&gt;t3</title>
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+<!-- t3&#45;&gt;t4 -->
+<g id="edge4" class="edge">
+<title>t3&#45;&gt;t4</title>
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+<!-- t4&#45;&gt;t5 -->
+<g id="edge5" class="edge">
+<title>t4&#45;&gt;t5</title>
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+</g>
+<!-- t4&#45;&gt;t6 -->
+<g id="edge7" class="edge">
+<title>t4&#45;&gt;t6</title>
+<path fill="none" stroke="#0044a0" d="M1399.1144,-909.8909C1412.803,-892.0931 1425.7216,-867.4749 1414,-847.2765 1410.4598,-841.1761 1405.6012,-835.9275 1400.0802,-831.4317"/>
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+<!-- t5&#45;&gt;t6 -->
+<g id="edge6" class="edge">
+<title>t5&#45;&gt;t6</title>
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+<!-- t7 -->
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+<title>t7</title>
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+<text text-anchor="middle" x="1344" y="-743.2765" font-family="Times,serif" font-size="20.00" fill="#000000">ocrmypdf.pipeline.rasterize_with_ghostscript</text>
+</g>
+<!-- t6&#45;&gt;t7 -->
+<g id="edge8" class="edge">
+<title>t6&#45;&gt;t7</title>
+<path fill="none" stroke="#0044a0" d="M1344,-789.2428C1344,-785.5683 1344,-781.6182 1344,-777.6828"/>
+<polygon fill="#0044a0" stroke="#0044a0" points="1347.5001,-777.4987 1344,-767.4987 1340.5001,-777.4987 1347.5001,-777.4987"/>
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+<!-- t17 -->
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+<title>t17</title>
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+</g>
+<!-- t6&#45;&gt;t17 -->
+<g id="edge16" class="edge">
+<title>t6&#45;&gt;t17</title>
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+<!-- t14 -->
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+<title>t14</title>
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+<text text-anchor="middle" x="339" y="-423.2765" font-family="Times,serif" font-size="20.00" fill="#000000">ocrmypdf.pipeline.select_image_layer</text>
+</g>
+<!-- t6&#45;&gt;t14 -->
+<g id="edge22" class="edge">
+<title>t6&#45;&gt;t14</title>
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+<!-- t21 -->
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+<title>t21</title>
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+</g>
+<!-- t6&#45;&gt;t21 -->
+<g id="edge28" class="edge">
+<title>t6&#45;&gt;t21</title>
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+<!-- t19 -->
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+<title>t19</title>
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+</g>
+<!-- t6&#45;&gt;t19 -->
+<g id="edge30" class="edge">
+<title>t6&#45;&gt;t19</title>
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+<!-- t8 -->
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+<title>t8</title>
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+</g>
+<!-- t7&#45;&gt;t8 -->
+<g id="edge9" class="edge">
+<title>t7&#45;&gt;t8</title>
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+<!-- t13 -->
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+<!-- t7&#45;&gt;t13 -->
+<g id="edge20" class="edge">
+<title>t7&#45;&gt;t13</title>
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+</g>
+<!-- t8&#45;&gt;t9 -->
+<g id="edge10" class="edge">
+<title>t8&#45;&gt;t9</title>
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+<!-- t8&#45;&gt;t13 -->
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+<title>t8&#45;&gt;t13</title>
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+<!-- t9&#45;&gt;t10 -->
+<g id="edge11" class="edge">
+<title>t9&#45;&gt;t10</title>
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+<title>t10&#45;&gt;t13</title>
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+<!-- t11&#45;&gt;t12 -->
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+<title>t11&#45;&gt;t12</title>
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+<title>t11&#45;&gt;t17</title>
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+<!-- t12&#45;&gt;t15 -->
+<g id="edge14" class="edge">
+<title>t12&#45;&gt;t15</title>
+<path fill="none" stroke="#0044a0" d="M1241.1928,-411.2411C1241.3358,-397.8693 1241.5334,-379.3811 1241.6973,-364.0466"/>
+<polygon fill="#0044a0" stroke="#0044a0" points="1245.1972,-364.0728 1241.8044,-354.0359 1238.1976,-363.9979 1245.1972,-364.0728"/>
+</g>
+<!-- t16 -->
+<g id="node19" class="node">
+<title>t16</title>
+<polygon fill="#00cc66" stroke="#000000" points="1787.9202,-353.7367 1420.0798,-353.7367 1416.0798,-349.7367 1416.0798,-317.7367 1783.9202,-317.7367 1787.9202,-321.7367 1787.9202,-353.7367"/>
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+<polyline fill="none" stroke="#000000" points="1783.9202,-349.7367 1783.9202,-317.7367 "/>
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+<text text-anchor="middle" x="1602" y="-329.7367" font-family="Times,serif" font-size="20.00" fill="#000000">ocrmypdf.pipeline.render_hocr_debug_page</text>
+</g>
+<!-- t12&#45;&gt;t16 -->
+<g id="edge27" class="edge">
+<title>t12&#45;&gt;t16</title>
+<path fill="none" stroke="#0044a0" d="M1310.6044,-411.2411C1371.1859,-395.5436 1458.9787,-372.7954 1522.3491,-356.3753"/>
+<polygon fill="#0044a0" stroke="#0044a0" points="1523.4996,-359.6928 1532.302,-353.7964 1521.7438,-352.9166 1523.4996,-359.6928"/>
+</g>
+<!-- t23 -->
+<g id="node25" class="node">
+<title>t23</title>
+<polygon fill="#efa03b" stroke="#000000" points="677.7205,-323.5194 871,-296.2006 1064.2795,-323.5194 1064.0991,-367.7221 677.9009,-367.7221 677.7205,-323.5194"/>
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+<text text-anchor="middle" x="871" y="-329.7367" font-family="Times,serif" font-size="20.00" fill="#000000">ocrmypdf.pipeline.merge_sidecars</text>
+</g>
+<!-- t12&#45;&gt;t23 -->
+<g id="edge41" class="edge">
+<title>t12&#45;&gt;t23</title>
+<path fill="none" stroke="#0044a0" d="M1169.6603,-411.2411C1128.034,-400.7175 1073.8731,-387.0251 1023.1228,-374.1949"/>
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+</g>
+<!-- t18 -->
+<g id="node18" class="node">
+<title>t18</title>
+<polygon fill="#00cc66" stroke="#000000" points="1096.2989,-270.197 805.7011,-270.197 801.7011,-266.197 801.7011,-234.197 1092.2989,-234.197 1096.2989,-238.197 1096.2989,-270.197"/>
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+<polyline fill="none" stroke="#000000" points="1092.2989,-266.197 1096.2989,-270.197 "/>
+<text text-anchor="middle" x="949" y="-246.197" font-family="Times,serif" font-size="20.00" fill="#000000">ocrmypdf.pipeline.combine_layers</text>
+</g>
+<!-- t15&#45;&gt;t18 -->
+<g id="edge24" class="edge">
+<title>t15&#45;&gt;t18</title>
+<path fill="none" stroke="#0044a0" d="M1178.7841,-317.7127C1132.7483,-304.587 1070.2826,-286.7769 1022.1,-273.0391"/>
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+</g>
+<!-- t17&#45;&gt;t18 -->
+<g id="edge23" class="edge">
+<title>t17&#45;&gt;t18</title>
+<path fill="none" stroke="#0044a0" d="M742.5275,-411.2563C707.334,-403.5731 675.8911,-393.1114 665,-379.2765 641.0609,-348.8665 639.6136,-321.4095 665,-292.197 674.2623,-281.5388 731.0775,-272.4723 791.4852,-265.6796"/>
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+</g>
+<!-- t17&#45;&gt;t23 -->
+<g id="edge40" class="edge">
+<title>t17&#45;&gt;t23</title>
+<path fill="none" stroke="#0044a0" d="M871.8072,-411.2411C871.7178,-402.8795 871.607,-392.5175 871.4965,-382.1769"/>
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+</g>
+<!-- t13&#45;&gt;t14 -->
+<g id="edge21" class="edge">
+<title>t13&#45;&gt;t14</title>
+<path fill="none" stroke="#0044a0" d="M1197.8658,-493.3637C1134.2194,-488.8196 1063.0826,-483.7842 998,-479.2765 852.6863,-469.2117 816.2452,-468.2864 671,-457.2765 618.6842,-453.3108 561.7627,-448.6403 510.0667,-444.2623"/>
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+</g>
+<!-- t13&#45;&gt;t16 -->
+<g id="edge26" class="edge">
+<title>t13&#45;&gt;t16</title>
+<path fill="none" stroke="#0044a0" d="M1400.9154,-479.7728C1403.5471,-472.4624 1406.3842,-464.5715 1409,-457.2765 1417.9204,-432.3989 1410.4916,-420.142 1429,-401.2765 1448.8322,-381.0616 1475.5255,-366.9968 1502.0009,-357.2438"/>
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+</g>
+<!-- t13&#45;&gt;t19 -->
+<g id="edge29" class="edge">
+<title>t13&#45;&gt;t19</title>
+<path fill="none" stroke="#0044a0" d="M1464.2273,-484.6109C1499.1449,-473.803 1540.6621,-460.9525 1574.8943,-450.3568"/>
+<polygon fill="#0044a0" stroke="#0044a0" points="1576.2874,-453.5895 1584.8054,-447.2891 1574.2176,-446.9025 1576.2874,-453.5895"/>
+</g>
+<!-- t14&#45;&gt;t18 -->
+<g id="edge25" class="edge">
+<title>t14&#45;&gt;t18</title>
+<path fill="none" stroke="#0044a0" d="M382.1114,-404.8262C439.5148,-373.4449 545.0952,-319.7698 642,-292.197 689.7605,-278.6074 743.0314,-269.6169 791.6153,-263.6758"/>
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 <g id="edge35" class="edge">
 <title>t18&#45;&gt;t22</title>
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-<g id="edge39" class="edge">
-<title>t18&#45;&gt;t24</title>
-<path fill="none" stroke="#0044a0" d="M852.4716,-245.1051C747.4645,-239.0474 603.1919,-228.6387 477,-212.1725 463.5912,-210.4229 449.788,-208.4132 435.908,-206.238"/>
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-<g id="edge44" class="edge">
-<title>t18&#45;&gt;t23</title>
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 <g id="edge36" class="edge">
 <title>t16&#45;&gt;t22</title>
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-<polygon fill="#0044a0" stroke="#0044a0" points="610.4833,-210.9707 618.9955,-204.6625 608.4073,-204.2857 610.4833,-210.9707"/>
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-<!-- t16&#45;&gt;t24 -->
-<g id="edge40" class="edge">
-<title>t16&#45;&gt;t24</title>
-<path fill="none" stroke="#0044a0" d="M417.6711,-234.1499C397.2337,-226.5285 372.5607,-217.3275 348.2499,-208.2617"/>
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-<!-- t16&#45;&gt;t23 -->
-<g id="edge45" class="edge">
-<title>t16&#45;&gt;t23</title>
-<path fill="none" stroke="#0044a0" d="M651.7596,-235.3105C656.5547,-234.9215 661.308,-234.5415 666,-234.1725 811.2137,-222.7545 848.5512,-230.9322 993,-212.1725 1006.176,-210.4614 1019.7432,-208.4558 1033.3753,-206.2619"/>
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+<polygon fill="#0044a0" stroke="#0044a0" points="1693.887,-214.8201 1696.9176,-204.668 1688.2175,-210.7143 1693.887,-214.8201"/>
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 <g id="edge32" class="edge">
 <title>t21&#45;&gt;t22</title>
-<path fill="none" stroke="#0044a0" d="M1165.0941,-235.3973C1085.9035,-224.7541 997.501,-212.8552 993,-212.1725 980.474,-210.2728 967.615,-208.2703 954.6442,-206.2099"/>
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-<title>t21&#45;&gt;t24</title>
-<path fill="none" stroke="#0044a0" d="M1165.2215,-234.9906C1162.1187,-234.699 1159.041,-234.4254 1156,-234.1725 855.1023,-209.1529 777.1841,-244.6523 477,-212.1725 462.026,-210.5524 446.5737,-208.5164 431.0798,-206.2151"/>
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-<g id="edge42" class="edge">
-<title>t21&#45;&gt;t23</title>
-<path fill="none" stroke="#0044a0" d="M1274.3771,-234.0471C1268.8557,-227.6412 1262.3807,-220.0px91 1255.8248,-212.5231"/>
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 <g id="edge34" class="edge">
 <title>t19&#45;&gt;t22</title>
-<path fill="none" stroke="#0044a0" d="M260.6159,-410.9505C259.8316,-364.871 259.0249,-246.8273 271,-234.1725 302.6435,-200.7331 431.3919,-218.4498 477,-212.1725 490.4888,-210.316 504.3558,-208.2974 518.3278,-206.1801"/>
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-<g id="edge38" class="edge">
-<title>t19&#45;&gt;t24</title>
-<path fill="none" stroke="#0044a0" d="M259.0498,-411.2136C258.0595,-401.7112 256.8826,-389.8585 256,-379.252 251.2976,-322.7418 247.1648,-257.5963 244.6312,-214.9019"/>
-<polygon fill="#0044a0" stroke="#0044a0" points="248.1192,-214.5935 244.0377,-204.8165 241.1313,-215.0048 248.1192,-214.5935"/>
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 <!-- t19&#45;&gt;t23 -->
-<g id="edge43" class="edge">
+<g id="edge39" class="edge">
 <title>t19&#45;&gt;t23</title>
-<path fill="none" stroke="#0044a0" d="M282.1528,-411.0561C318.8331,-380.6455 397.8323,-320.0855 476,-292.1725 553.979,-264.3269 579.2078,-283.062 661,-270.1725 742.8817,-257.269 762.3086,-248.2304 844,-234.1725 909.9705,-222.82 927.0119,-223.4221 993,-212.1725 1003.5851,-210.368 1014.439,-208.4601 1025.3874,-206.4907"/>
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-<!-- t19&#45;&gt;t25 -->
-<g id="edge50" class="edge">
-<title>t19&#45;&gt;t25</title>
-<path fill="none" stroke="#0044a0" d="M342.173,-411.2166C389.8324,-400.6274 451.9326,-386.8297 509.989,-373.9305"/>
-<polygon fill="#0044a0" stroke="#0044a0" points="511.0179,-377.2873 520.0207,-371.7016 509.4996,-370.4539 511.0179,-377.2873"/>
+<path fill="none" stroke="#0044a0" d="M1502.6864,-411.2619C1471.854,-407.6457 1439.3509,-404.0959 1409,-401.2765 1261.7548,-387.598 1223.4889,-399.5063 1077,-379.2765 1064.9997,-377.6192 1052.6541,-375.6614 1040.2537,-373.5086"/>
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 <g id="edge33" class="edge">
 <title>t20&#45;&gt;t22</title>
-<path fill="none" stroke="#0044a0" d="M323.4472,-984.1943C198.6099,-964.2959 37,-926.6746 37,-865.252 37,-865.252 37,-865.252 37,-429.252 37,-211.1917 260.8906,-241.2767 477,-212.1725 490.808,-210.313 505.0108,-208.2741 519.3157,-206.1255"/>
-<polygon fill="#0044a0" stroke="#0044a0" points="519.8697,-209.5816 529.2317,-204.6214 518.8199,-202.6608 519.8697,-209.5816"/>
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-<polygon fill="#efa03b" stroke="#000000" points="568.0652,-47.332 735,-20.0049 901.9348,-47.332 901.779,-91.5483 568.221,-91.5483 568.0652,-47.332"/>
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-<text text-anchor="middle" x="735" y="-53.5531" font-family="Times,serif" font-size="20.00" fill="#000000">ocrmypdf.pipeline.copy_final</text>
+<!-- t24 -->
+<g id="node24" class="node">
+<title>t24</title>
+<polygon fill="#efa03b" stroke="#000000" points="1556.0652,-47.332 1723,-20.0049 1889.9348,-47.332 1889.779,-91.5483 1556.221,-91.5483 1556.0652,-47.332"/>
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+<text text-anchor="middle" x="1723" y="-53.5531" font-family="Times,serif" font-size="20.00" fill="#000000">ocrmypdf.pipeline.copy_final</text>
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-<g id="edge47" class="edge">
-<title>t24&#45;&gt;t26</title>
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-<g id="edge48" class="edge">
-<title>t23&#45;&gt;t26</title>
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-<polygon fill="#0044a0" stroke="#0044a0" points="905.1511,-94.3939 894.6256,-95.6048 903.6089,-101.2219 905.1511,-94.3939"/>
+<!-- t22&#45;&gt;t24 -->
+<g id="edge38" class="edge">
+<title>t22&#45;&gt;t24</title>
+<path fill="none" stroke="#0044a0" d="M1723,-124.9057C1723,-118.6774 1723,-112.2535 1723,-105.9763"/>
+<polygon fill="#0044a0" stroke="#0044a0" points="1726.5001,-105.6115 1723,-95.6115 1719.5001,-105.6115 1726.5001,-105.6115"/>
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diff --git a/src/ocrmypdf/pipeline.py b/src/ocrmypdf/pipeline.py
index c11c06bd..8872a7e3 100644
--- a/src/ocrmypdf/pipeline.py
+++ b/src/ocrmypdf/pipeline.py
@@ -927,13 +927,14 @@ def skip_page(
     re_symlink(input_file, output_file, log)
 
 
-def _merge_pages_common(
+def merge_pages(
         input_files_groups,
         output_file,
         log,
         context):
     """Determine ordered list of PDF pages to merge. Returns PDF from which
     metadata should be drawn if present (for qpdf)."""
+    options = context.get_options()
 
     input_files = list(f for f in flatten_groups(input_files_groups)
                        if not f.endswith('.txt'))
@@ -958,17 +959,22 @@ def _merge_pages_common(
     pdf_pages = sorted(input_files, key=input_file_order)
     log.debug("Final pages: " + "\n".join(pdf_pages))
 
-    return pdf_pages, metadata_file
+    args = (pdf_pages, metadata_file, output_file, log, context)
+    if options.output_type.startswith('pdfa'):
+        _do_merge_ghostscript(*args)
+    elif fitz:
+        _do_merge_mupdf(*args)
+    else:
+        _do_merge_qpdf(*args)
 
 
-def merge_pages_ghostscript(
-        input_files_groups,
+def _do_merge_ghostscript(
+        pdf_pages,
+        metadata_file,
         output_file,
         log,
         context):
     options = context.get_options()
-    pdf_pages, _ = _merge_pages_common(
-        input_files_groups, output_file, log, context)
     input_pdfinfo = context.get_pdfinfo()
     ghostscript.generate_pdfa(
         pdf_version=input_pdfinfo.min_version,
@@ -986,14 +992,13 @@ def merge_pages_ghostscript(
         os.replace(output_file + '_toc.pdf', output_file)
 
 
-def merge_pages_qpdf(
-        input_files_groups,
+def _do_merge_qpdf(
+        pdf_pages,
+        metadata_file,
         output_file,
         log,
         context):
     options = context.get_options()
-    pdf_pages, metadata_file = _merge_pages_common(
-        input_files_groups, output_file, log, context)
 
     reader_metadata = pypdf.PdfFileReader(metadata_file)
     pdfmark = get_pdfmark(reader_metadata, options)
@@ -1017,18 +1022,15 @@ def merge_pages_qpdf(
                log=log)
 
 
-def merge_pages_mupdf(
-        input_files_groups,
+def _do_merge_mupdf(
+        pdf_pages,
+        metadata_file,
         output_file,
         log,
         context):
     assert fitz
 
     options = context.get_options()
-
-    pdf_pages, metadata_file = _merge_pages_common(
-        input_files_groups, output_file, log, context)
-
     doc = fitz.Document()
 
     reader_metadata = pypdf.PdfFileReader(metadata_file)
@@ -1300,7 +1302,6 @@ def build_pipeline(options, work_folder, log, context):
         extras=[log, context])
     task_generate_postscript_stub.active_if(options.output_type.startswith('pdfa'))
 
-
     # Bypass valve
     task_skip_page = main_pipeline.transform(
         task_func=skip_page,
@@ -1311,41 +1312,16 @@ def build_pipeline(options, work_folder, log, context):
         extras=[log, context])
 
     # Merge pages
-    task_merge_pages_ghostscript = main_pipeline.merge(
-        task_func=merge_pages_ghostscript,
+    task_merge_pages = main_pipeline.merge(
+        task_func=merge_pages,
         input=[task_combine_layers,
+               task_repair_and_parse_pdf,
                task_render_hocr_debug_page,
                task_skip_page,
                task_ocr_tesseract_and_render_pdf,
                task_generate_postscript_stub],
         output=os.path.join(work_folder, 'merged.pdf'),
         extras=[log, context])
-    task_merge_pages_ghostscript.active_if(
-        options.output_type.startswith('pdfa'))
-
-    task_merge_pages_qpdf = main_pipeline.merge(
-        task_func=merge_pages_qpdf,
-        input=[task_combine_layers,
-               task_render_hocr_debug_page,
-               task_skip_page,
-               task_ocr_tesseract_and_render_pdf,
-               task_repair_and_parse_pdf],
-        output=os.path.join(work_folder, 'merged.pdf'),
-        extras=[log, context])
-    task_merge_pages_qpdf.active_if(
-        options.output_type == 'pdf' and not fitz)
-
-    task_merge_pages_mupdf = main_pipeline.merge(
-        task_func=merge_pages_mupdf,
-        input=[task_combine_layers,
-               task_render_hocr_debug_page,
-               task_skip_page,
-               task_ocr_tesseract_and_render_pdf,
-               task_repair_and_parse_pdf],
-        output=os.path.join(work_folder, 'merged.pdf'),
-        extras=[log, context])
-    task_merge_pages_mupdf.active_if(
-        options.output_type == 'pdf' and fitz)
 
     task_merge_sidecars = main_pipeline.merge(
         task_func=merge_sidecars,
@@ -1359,8 +1335,6 @@ def build_pipeline(options, work_folder, log, context):
     # Finalize
     main_pipeline.merge(
         task_func=copy_final,
-        input=[task_merge_pages_ghostscript,
-               task_merge_pages_mupdf,
-               task_merge_pages_qpdf],
+        input=[task_merge_pages],
         output=options.output_file,
         extras=[log, context])