CBZ to PDF Converter

CBZ is the common format for digital comics and manga: a plain ZIP archive full of page images, named in reading order. Many e-readers, tablets and print shops prefer a single PDF instead. This tool opens the archive in your browser, sorts the pages the way a person would (2 before 10), skips macOS clutter and hidden files, and builds a PDF with one image per page.

How to use this tool

1. Drop one or more .cbz or .zip files (or a set of page images).
2. Choose the page size: the image size keeps every pixel, A4 or B5/B6 fits pages to paper.
3. Tick right-to-left for manga so two-page view shows spreads in Japanese order.
4. Download the PDF — one per archive.

Formula

Page order = file names sorted with numeric collation (page2 < page10); fitted page scale = min(page width ÷ image width, page height ÷ image height)

JPG images, and PNG images without transparency, are placed as they are, without re-encoding, so the PDF is about the same size as the archive; transparent or interlaced PNGs are stored losslessly in the PDF's own format. Other formats are converted to JPG at 92% quality. Double-page spreads (wider than tall) get a landscape page. The right-to-left option sets the PDF's reading direction for viewers; "Reverse the page order" really reverses the pages.

Example

A volume with 192 JPG pages of 1200 × 1800 px in chapter01/001.jpg … chapter03/064.jpg becomes a 192-page PDF. With "Same as each image" each page is 1200 × 1800 pt; with B6 (362.8 × 515.9 pt) each image is scaled by min(362.8 ÷ 1200, 515.9 ÷ 1800) = 28.7%.

What is not supported

CBR files are RAR archives and CB7 files are 7-Zip archives; browsers cannot unpack those formats, so convert them to CBZ (or extract the images) first. Password-protected ZIP files cannot be opened either. JPEG orientation tags are not applied, which rarely matters for scanned comics.