[convert] pdf2cbz

[shizen]

hello,

i begin to write a plug in for convert pdf to cbz.
i have tried lot of method but don't find methode to convert pdf to image.

i try
calibre.ebooks.pdf.pdftoimage.pdf_to_images
calibre.ebooks.pdf.render.pdf_to_images
calibre.ebooks.pdf.image_writer.PDFImageWriter
calibre.ebooks.conversion.cli.convert
calibre.ebooks.conversion.plumber.Plumber
calibre.ebooks.pdf.reader.PDFDocument
calibre.ebooks.pdf.render.render_page
Calibre2\app\bin\pdftoppm.exe
fritz

if i convert pdf to zip in calibre, calibre convert to html and image, but the zip is good for cbz (after rename) so , it's possible.

have you idea ? official method ?

thank you

[kovidgoyal]

calibre includes pdftoppm use that.

[shizen]

Originally Posted by kovidgoyal

calibre includes pdftoppm use that.

thank you very much.

i have allway timeout but if you say to use it, i will !

thank you for calibre !

[kovidgoyal]

A timeout where? Obviously pdftoppm will be slow as it actually renders the pdf pages, what you really need is a utility to extract images from the PDF. calibre doesnt ship one however.

[shizen]

Originally Posted by kovidgoyal

A timeout where? Obviously pdftoppm will be slow as it actually renders the pdf pages, what you really need is a utility to extract images from the PDF. calibre doesnt ship one however.

i make a command like ['C:\\Program Files\\Calibre2\\app\\bin\\pdftoppm.exe', '-png', '-r', '200', 'C:\\Users\\Admin\\AppData\\Local\\Temp\\calibre-o1lck1gd\\zd3h92f9pdf2cbz\\tmp.pdf', 'C:\\Users\\Admin\\AppData\\Local\\Temp\\calibre-o1lck1gd\\zd3h92f9pdf2cbz\\page']

and i use it in a subprocess (popen or run)
proc = subprocess.Popen(
cmd,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
text=True
)

the plug in "pdf input" extract image to make a html and a zip, so calibre can do it .

the pdf are just image without text, a comic book and i want to extract image.

[shizen]

i look for a faster tool !

[BetterRed]

This one has worked for me ==>> GitHub - r45635/pdf-to-cbz-converter

An advanced, local and privacy-focused PDF-to-CBZ converter. Includes DPI analysis, batch processing, multithreading, JPEG/PNG export, and CBZ metadata. Designed for comic fans, archivists, and ebook collectors.

BR