A CBZ is a ZIP of page images and nothing more, which is why converting one goes wrong in small ways: page 10 sorted before page 2, a folder of covers muddled into the story, resource forks from a Mac counted as pages, and a double-page spread left lying on its side. Here pages are ordered folder by folder in natural name order, junk entries are ignored, and each image is identified by its contents rather than its extension. A ComicInfo.xml, if the archive has one, supplies the series, issue number, writer and summary for the document's own details — and a manga flag switches the reading direction on its own. JPEG and PNG pages are embedded exactly as they came. The archive is unpacked on your device.
Features
Natural page order — page2 before page10 — applied folder by folder
ComicInfo.xml read for series, issue, title, writer, year and summary, then written into the PDF
Right-to-left reading for manga, chosen automatically when the archive says so
Landscape spreads split into two pages, right half first for a manga book
JPEG and PNG pages embedded unchanged; WebP, GIF, BMP and AVIF are converted
Page at the image's own size, or US comic, A4, Letter or B5 with the image centred
Thumbnails of the opening pages, with every spread marked, before you convert
Several archives at once: a PDF each in a ZIP, or one combined volume
How to use the CBZ to PDF
Drop one or more .cbz archives onto the page
Check the thumbnails and the reading direction
Choose the page size, and turn on spread splitting for single pages
Convert, then save the PDF or the ZIP
Example
Input
Series 012.cbz — 24 pages, ComicInfo.xml says manga, right to left
Output
Series 012.pdf — 26 pages after two spreads were split, right half first, opens right to left
The archive's own metadata chose the reading direction.
Common errors & troubleshooting
My CBR was refused. — A CBR is a RAR archive, which a browser cannot open. Re-save it as CBZ — a plain ZIP of the page images — in a comic reader or an archive tool, then convert that. CB7 and CBT need the same treatment.
The pages came out in the wrong order. — Order follows the names inside the archive, folder by folder. Where the naming is inconsistent, rename the images with zero-padded numbers (001, 002 and so on) and re-zip before converting.
A split spread shows the wrong half first. — The halves follow the reading direction. Switch between left to right and right to left and the two halves swap over with it.
The finished PDF would not preview in the page. — Anything over 50 MB is left out of the inline preview to keep the tab responsive. Download it and read it in a PDF viewer — the file itself is complete.
Frequently asked questions
Does converting a comic archive re-compress the artwork?
Not when the pages are JPEG or PNG: those bytes are embedded exactly as they sat in the archive. Only WebP, GIF, BMP and AVIF pages have to be redrawn, because a PDF cannot carry them directly.
Can it tell a double-page spread from an ordinary page?
It treats a landscape image in a portrait book as a spread, which is right almost every time. The thumbnails mark each one, so you can see what would be split before you convert anything.
What does a ComicInfo.xml actually change in the output?
Series, issue number and title become the PDF's title, the writer becomes its author, the summary becomes its subject, and a manga entry of YesAndRightToLeft flips the reading direction for you.
Will a reader turn the pages the manga way round?
Where the reader honours it, yes: right-to-left output records the document's reading direction, which is the flag viewers use to bind the spine on the right and page backwards.
Does the page-size choice affect picture quality?
No. Each page at its image size only decides how large the page prints; the pixels go in unchanged, and the resolution setting says how many of them land in an inch of paper.
Can I merge a run of issues into one volume?
Yes. Drop the archives together and choose one combined PDF. The issues follow the order you added them in, and each keeps its own internal page order.
Related tools
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