CBZ to PDF Converter

About CBZ to PDF

The other direction: a comic book archive becomes a PDF, one page per image, each page exactly the size of its own picture so nothing is scaled or letterboxed.

Ordering is the part that matters. Comic readers sort by file name, and so does this — with numeric awareness, so 10.jpg comes after 9.jpg rather than before it. An archive whose pages are named inconsistently will come out in the order a reader would have shown it, which is the most useful definition of correct.

A CBR is a RAR archive rather than a ZIP, and nothing in a browser can open one. Converting it to CBZ first — with any desktop archiver — is the way round that.

Where it helps

• File-name ordering with numeric awareness, matching what a comic reader does.
• Each page is the size of its own image — no scaling, no letterboxing, no margins.
• Any ZIP of images works, whatever it is named.
• The archive never leaves your browser.

Limits

• CBR archives cannot be opened: RAR is proprietary and no browser implements it.
• Every page is re-encoded as JPEG, so a PNG archive of line art loses a little sharpness.
• There is no text layer — the result is pictures of pages, like the archive it came from.
• An archive with inconsistent file naming may order in a way you did not intend; the result says which file came first.
• Very large archives are limited by what a browser tab can hold.

Frequently asked questions

What if my file is a CBR?

Open it with a desktop archiver and save the images as a ZIP, or use a comic manager to convert CBR to CBZ. RAR decompression is proprietary and cannot be done in a browser.

What order will the pages be in?

File-name order, compared the way a person would: page-2 before page-10. The result names the first file so the ordering can be checked at a glance.

Why is everything re-encoded as JPEG?

So that a mixed archive produces one consistent document, and so the size is predictable. For line art that matters, raise the quality — at 95 the difference is very hard to see.

Do the pages keep their size?

Each PDF page is exactly the pixel size of its image, so the proportions are the original's. A comic with a double-page spread keeps the spread as one wide page.

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