FormatDrop
How-To Guide

How to Convert CBZ to PDF

CBZ (Comic Book ZIP) files are ZIP archives containing sequential image files — typically JPG or PNG. While CBZ is supported in dedicated comic readers (Komga, ComiXology, Calibre), many e-readers, tablets, and PDF-native apps don't support CBZ. Converting CBZ to PDF embeds each page image into a PDF, giving you universal compatibility.

Open CBZ to PDF Converter

Step-by-step instructions

  1. 1

    Upload your CBZ file

    Select your .cbz file. CBZ files are renamed ZIP archives. The converter extracts all page images in their natural sort order (001.jpg, 002.jpg, etc.) and prepares them for PDF embedding.

    Go to converter
  2. 2

    Choose PDF as output

    Select PDF. Each image becomes one PDF page. The page size is set to match the image dimensions, so the PDF renders at the comic's natural aspect ratio without letterboxing.

  3. 3

    Adjust image quality if needed

    Most converters embed the original images at full quality. If you need a smaller PDF for email or upload, reduce the image quality setting (80% JPG compression still looks excellent on screen).

  4. 4

    Download and transfer to your e-reader

    The PDF can be loaded onto a Kindle via Send to Kindle, a Kobo or iPad via USB or cloud sync, or opened in any PDF reader. Tap-to-zoom navigation works in PDF readers just as in comic readers.

Why convert CBZ to PDF?

CBZ is the comic enthusiast's format; PDF is the format that everything reads. Converting CBZ to PDF makes your comic library accessible on every device without a dedicated reader app.

Your files never leave your device

FormatDrop runs the conversion engine entirely inside your browser using WebAssembly. No file upload. No server. Nothing stored. You can verify this by opening DevTools → Network tab and watching: zero upload requests.

Frequently asked questions

How do I convert CBZ to PDF on the command line?
Using ImageMagick: `convert $(unzip -l input.cbz | awk '/\.jpg/ {print $4}' | sort) output.pdf`. Or: unzip the CBZ manually (`unzip input.cbz -d pages/`) then `convert pages/*.jpg output.pdf`.
Will the page order be correct in the PDF?
Yes, if the images are numbered sequentially (001.jpg, 002.jpg, …). Most CBZ files use zero-padded numbering, which sorts correctly. If pages come out of order, sort them numerically before concatenation.
Can I convert CBR (Comic Book RAR) to PDF the same way?
The process is identical, but you need to unrar the CBR first: `unrar e input.cbr pages/`. Then convert the extracted images to PDF. CBR is a RAR archive; CBZ is a ZIP archive — both contain the same page images.
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More guides

How to Convert HEIC to JPGHow to Convert PNG to PDFHow to Convert MOV to MP4How to Convert WebP to JPG