erikvullings · May 4, 2026 19:25 · May 4, 2026 · May 4, 2026 · May 4, 2026 · May 4, 2026
diff --git a/README.md b/README.md
@@ -74,7 +74,11 @@ mogrify -path rotated/ \
 cd rotated
 
 # Create regular PDF
-magick *.png input.pdf
+magick *.png \
+  -units PixelsPerInch \
+  -density 300 \
+  -resize 1158x1851! \
+  input.pdf
 
 # Add searchable text using ocrmypdf
 ocrmypdf --optimize 3 --rotate-pages input.pdf ocred.pdf
@@ -93,7 +97,11 @@ mogrify -path cropped -crop 1158x1851+95+115 +repage *.png
 cd cropped
 
 # Create regular PDF
-magick *.png input.pdf
+magick *.png \
+  -units PixelsPerInch \
+  -density 300 \
+  -resize 1158x1851! \
+  input.pdf
 
 # Add searchable text using ocrmypdf
 ocrmypdf --optimize 3 --rotate-pages input.pdf ocred.pdf

diff --git a/README.md b/README.md
@@ -111,3 +111,12 @@ ebook-convert output.pdf book.epub \
   --enable-heuristics \
   --no-default-epub-cover  
 ```
+
+Alternatively, use `docling` to convert your pdf to markdown first:
+
+```bash
+PYTORCH_MPS_HIGH_WATERMARK_RATIO=0.8 \
+PYTORCH_MPS_LOW_WATERMARK_RATIO=0.5 \
+docling --from pdf --to md --image-export-mode embedded ocred.pdf
+```
+
diff --git a/README.md b/README.md
@@ -73,16 +73,26 @@ mogrify -path rotated/ \
 
 cd rotated
 
-## Create regular PDF
+# Create regular PDF
 magick *.png input.pdf
+
+# Add searchable text using ocrmypdf
 ocrmypdf --optimize 3 --rotate-pages input.pdf ocred.pdf
 
-# Crop
+# Compress
+gs -sDEVICE=pdfwrite \
+   -dCompatibilityLevel=1.4 \
+   -dPDFSETTINGS=/ebook \
+   -dNOPAUSE -dQUIET -dBATCH \
+   -sOutputFile=output.pdf \
+   ocred.pdf
+
+# Do the same for the cropped version
 mogrify -path cropped -crop 1158x1851+95+115 +repage *.png
 
 cd cropped
 
-# Concatenate
+# Create regular PDF
 magick *.png input.pdf
 
 # Add searchable text using ocrmypdf

diff --git a/README.md b/README.md
@@ -9,12 +9,41 @@ A simple approach and, according to ChatGPT legal approach, is the following:
 
 ## Taking screenshots
 
-Taking screenshots of 300+ pages is no fun, even on a Mac. I needed to press:
+Taking screenshots of 300+ pages is no fun, even on a Mac. I needed to press for each page:
 - CMD + SHIFT + 5: It opens the screenshot tool. 
   The first time, select the page area and specify the output folder <OUTPUT_FOLDER>. On subsequent times, the same area is selected.
 - Press "ENTER" to save the page
 - Press "Page Down" to move to the next page.
-
+
+AppleScript to the rescue:
+
+Press CMD+SPACE and type "Script Editor". 
+1. Create a new script
+2. Paste below code
+3. Press RUN
+4. Quickly click the browser (so it receives keyboard focus for Page Down) 
+
+```bash
+delay 3
+tell application "System Events"
+	repeat 322 times
+
+		-- Open screenshot tool
+		key code 23 using {command down, shift down} -- Cmd+Shift+5
+		delay 1
+
+		-- Press Enter (take screenshot)
+		key code 36
+		delay 1
+
+		-- Go to next page (Page Down)
+		key code 121
+		delay 1
+
+	end repeat
+end tell
+```
+
 **TIP:** If you have the option to display the page in landscape format, e.g. rotate page 90 degrees counter-clockwise, the image resolution is better.
 
 ## Tools you need (on Mac)

diff --git a/README.md b/README.md
@@ -30,7 +30,7 @@ brew install --cask calibre
 cd <OUTPUT_FOLDER>
 
 # Rename to page_000.png
-i=0; for f in $(ls -1v *.png); do mv "$f" "$(printf "page_%03d.png" $i)"; ((i++)); done
+i=0; for f in *.png(.n); do mv "$f" "$(printf "page_%03d.png" "$i")"; ((i++)); done
 
 # Prepare outputs
 mkdir -p rotated/cropped

diff --git a/README.md b/README.md
@@ -68,7 +68,7 @@ gs -sDEVICE=pdfwrite \
    ocred.pdf
 
 # To epub using calibre
-ebook-convert ocred.pdf book.epub \
+ebook-convert output.pdf book.epub \
   --enable-heuristics \
   --no-default-epub-cover  
 ```
diff --git a/README.md b/README.md
@@ -20,7 +20,7 @@ Taking screenshots of 300+ pages is no fun, even on a Mac. I needed to press:
 ## Tools you need (on Mac)
 
 ```bash
-brew install imagemagick ocrmypdf 
+brew install imagemagick ocrmypdf ghostscript
 brew install --cask calibre
 ```
 
@@ -54,11 +54,19 @@ mogrify -path cropped -crop 1158x1851+95+115 +repage *.png
 cd cropped
 
 # Concatenate
-magick cropped/*.png input.pdf
+magick *.png input.pdf
 
 # Add searchable text using ocrmypdf
 ocrmypdf --optimize 3 --rotate-pages input.pdf ocred.pdf
 
+# Compress
+gs -sDEVICE=pdfwrite \
+   -dCompatibilityLevel=1.4 \
+   -dPDFSETTINGS=/ebook \
+   -dNOPAUSE -dQUIET -dBATCH \
+   -sOutputFile=output.pdf \
+   ocred.pdf
+
 # To epub using calibre
 ebook-convert ocred.pdf book.epub \
   --enable-heuristics \

diff --git a/README.md b/README.md
@@ -0,0 +1,66 @@
+# Converting digital DRM protected ebook to PDF and epub for offline reading
+
+I recently bought a digital, DRM protected, ebook. Since it is protected, you are not allowed to download it, so I always have to use a browser. Since I prefer an ereader, I looked for legal ways to convert my book to a PDF or epub.
+
+A simple approach and, according to ChatGPT legal approach, is the following:
+
+1. Create screenshots of the book pages in the online reader
+2. Bundle the screenshots to epub or pdf
+
+## Taking screenshots
+
+Taking screenshots of 300+ pages is no fun, even on a Mac. I needed to press:
+- CMD + SHIFT + 5: It opens the screenshot tool. 
+  The first time, select the page area and specify the output folder <OUTPUT_FOLDER>. On subsequent times, the same area is selected.
+- Press "ENTER" to save the page
+- Press "Page Down" to move to the next page.
+
+**TIP:** If you have the option to display the page in landscape format, e.g. rotate page 90 degrees counter-clockwise, the image resolution is better.
+
+## Tools you need (on Mac)
+
+```bash
+brew install imagemagick ocrmypdf 
+brew install --cask calibre
+```
+
+## Post-processing
+
+```bash
+cd <OUTPUT_FOLDER>
+
+# Rename to page_000.png
+i=0; for f in $(ls -1v *.png); do mv "$f" "$(printf "page_%03d.png" $i)"; ((i++)); done
+
+# Prepare outputs
+mkdir -p rotated/cropped
+
+# Rotate
+mogrify -path rotated/ \
+  -rotate 90 \
+  -density 300 \
+  -format png \
+  *.png
+
+cd rotated
+
+## Create regular PDF
+magick *.png input.pdf
+ocrmypdf --optimize 3 --rotate-pages input.pdf ocred.pdf
+
+# Crop
+mogrify -path cropped -crop 1158x1851+95+115 +repage *.png
+
+cd cropped
+
+# Concatenate
+magick cropped/*.png input.pdf
+
+# Add searchable text using ocrmypdf
+ocrmypdf --optimize 3 --rotate-pages input.pdf ocred.pdf
+
+# To epub using calibre
+ebook-convert ocred.pdf book.epub \
+  --enable-heuristics \
+  --no-default-epub-cover  
+```
No results found