Added 6up.py and 9up.py to examples (Python3)

examples/6up.py

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+#!/usr/bin/env python
+
+'''
+usage:   6up.py my.pdf
+
+Note: Tested with Python3.12
+
+Creates 6up.my.pdf with a single output page for every
+6 input pages.
+'''
+
+import sys
+import os
+
+from pdfrw import PdfReader, PdfWriter, PageMerge
+
+def get6(srcpages):
+    scale = 0.333333
+    srcpages = PageMerge() + srcpages
+    x_increment, y_increment = (scale * i for i in srcpages.xobj_box[2:])
+
+    for i, page in enumerate(srcpages):
+        page.scale(scale)
+
+        if i%2 == 0: page.x=0
+        else: page.x=x_increment
+
+        if i%6 <  2: page.y=2*y_increment
+        elif i%6 <  4: page.y=y_increment
+        else:          page.y=0
+    return srcpages.render()
+
+
+inpfn, = sys.argv[1:]
+outfn = '6up.' + os.path.basename(inpfn)
+pages = PdfReader(inpfn).pages
+writer = PdfWriter(outfn)
+for index in range(0, len(pages), 6):
+    writer.addpage(get6(pages[index:index + 6]))
+writer.write()
+
+print()
+os.system(f"ls -al {outfn}")

examples/9up.py

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+#!/usr/bin/env python
+
+'''
+usage:   9up.py my.pdf
+
+Note: Tested with Python3.12
+
+Creates 9up.my.pdf with a single output page for every
+9 input pages.
+'''
+
+import sys
+import os
+
+from pdfrw import PdfReader, PdfWriter, PageMerge
+
+def get9(srcpages):
+    scale = 0.333333
+    srcpages = PageMerge() + srcpages
+    x_increment, y_increment = (scale * i for i in srcpages.xobj_box[2:])
+    for i, page in enumerate(srcpages):
+        page.scale(scale)
+
+        if i%3 == 0: page.x=0
+        elif i%3 == 1: page.x=x_increment
+        elif i%3 == 2: page.x=2*x_increment
+
+        if i%9 <  3: page.y=2*y_increment
+        elif i%9 <  6: page.y=y_increment
+        else:          page.y=0
+    return srcpages.render()
+
+
+inpfn, = sys.argv[1:]
+outfn = '9up.' + os.path.basename(inpfn)
+pages = PdfReader(inpfn).pages
+writer = PdfWriter(outfn)
+for index in range(0, len(pages), 9):
+    writer.addpage(get9(pages[index:index + 9]))
+writer.write()
+
+print()
+os.system(f"ls -al {outfn}")