diff --git a/luametalatex-back-pdf.lua b/luametalatex-back-pdf.lua
index a3ae559..11f661a 100644
--- a/luametalatex-back-pdf.lua
+++ b/luametalatex-back-pdf.lua
@@ -84,7 +84,7 @@ token.luacmd("shipout", function()
   local out, resources, annots = writer(pfile, list, fontdirs, usedglyphs, colorstacks)
   cur_page = nil
   local content = pfile:stream(nil, '', out)
-  pfile:indirect(page, string.format([[<</Type/Page/Parent %i 0 R/Contents %i 0 R/MediaBox[0 %i %i %i]/Resources%s%s%s>>]], parent, content, -math.ceil(to_bp(list.depth)), math.ceil(to_bp(list.width)), math.ceil(to_bp(list.height)), resources(pdfvariable.pageresources), annots, pdfvariable.pageattr))
+  pfile:indirect(page, string.format([[<</Type/Page/Parent %i 0 R/Contents %i 0 R/MediaBox[0 %i %i %i]/Resources%s%s%s%s>>]], parent, content, -math.ceil(to_bp(list.depth)), math.ceil(to_bp(list.width)), math.ceil(to_bp(list.height)), resources(pdfvariable.pageresources .. pdf.pageresources), annots, pdfvariable.pageattr, pdf.pageattributes))
   node.flush_list(list)
   token.put_next(reset_deadcycles)
   token.scan_token()
@@ -924,3 +924,13 @@ end, "protected", "value")
 token.luacmd("lastypos", function()
   return integer_code, (saved_pos_y+.5)//1
 end, "protected", "value")
+
+local function pdf_register_funcs(name)
+  pdf[name] = ""
+  pdf['get' .. name] = function() return pdf[name] end
+  pdf['set' .. name] = function(s) pdf[name] = assert(s) end
+end
+
+pdf_register_funcs'pageattributes'
+pdf_register_funcs'pageresources'
+pdf_register_funcs'pagesattributes'
diff --git a/luametalatex-pdf-pagetree.lua b/luametalatex-pdf-pagetree.lua
index 6e45e84..ba8147a 100644
--- a/luametalatex-pdf-pagetree.lua
+++ b/luametalatex-pdf-pagetree.lua
@@ -1,12 +1,13 @@
+local pdf = pdf
 local min = math.min
 local format = string.format
 local concat = table.concat
 local pdfvariable = pdf.variable
-local function write(pdf, tree, total, max)
-  tree = tree or pdf.pages
+local function write(pfile, tree, total, max)
+  tree = tree or pfile.pages
   if #tree == 0 then 
-    local id = pdf:getobj()
-    pdf:indirect(id, '<</Type/Pages/Kids[]/Count 0>>')
+    local id = pfile:getobj()
+    pfile:indirect(id, '<</Type/Pages/Kids[]/Count 0>>')
     return id
   end
   max = max or 6 -- These defaults only work on the lowest level
@@ -20,37 +21,37 @@ local function write(pdf, tree, total, max)
     local id = tree[-i]
     newtree[i+1] = id
     if 0 == i % 6 and #tree > 6 then
-      local parentid = pdf:getobj()
+      local parentid = pfile:getobj()
       newtree[-(i//6)] = parentid
       parent = format("/Parent %i 0 R", parentid)
     elseif #tree <= 6 then
-      parent = pdfvariable.pagesattr
+      parent = pdfvariable.pagesattr .. pdf.pagesattributes
     end
-    pdf:indirect(id, format('<</Type/Pages%s/Kids[%s 0 R]/Count %i>>', parent, concat(tree, ' 0 R ', 6*i+1, min(#tree, 6*i+6)), min(remaining, max)))
+    pfile:indirect(id, format('<</Type/Pages%s/Kids[%s 0 R]/Count %i>>', parent, concat(tree, ' 0 R ', 6*i+1, min(#tree, 6*i+6)), min(remaining, max)))
     remaining = remaining - max
   end
   if newtree[0] then
-    return write(pdf, newtree, total, max*6)
+    return write(pfile, newtree, total, max*6)
   end
   return newtree[1]
 end
-local function newpage(pdf)
-  local pages = pdf.pages
+local function newpage(pfile)
+  local pages = pfile.pages
   local pagenumber = #pages+1
   local pageid = pages.reserved and pages.reserved[pagenumber]
   if pageid then
     pages.reserved[pagenumber] = nil
   else
-    pageid = pdf:getobj()
+    pageid = pfile:getobj()
   end
   pages[pagenumber] = pageid
   if 1 == pagenumber % 6 then
-    pages[-((pagenumber-1)//6)] = pdf:getobj()
+    pages[-((pagenumber-1)//6)] = pfile:getobj()
   end
   return pageid, pages[-((pagenumber-1)//6)]
 end
-local function reservepage(pdf, num)
-  local pages = pdf.pages
+local function reservepage(pfile, num)
+  local pages = pfile.pages
   if pages[num] then return pages[num] end
   local reserved = pages.reserved
   if reserved then
@@ -59,7 +60,7 @@ local function reservepage(pdf, num)
     reserved = {}
     pages.reserved = reserved
   end
-  reserved[num] = pdf:getobj()
+  reserved[num] = pfile:getobj()
   return reserved[num]
 end
 return {