CBZ to PDF Converter
Turn a comic book archive into a single PDF, page by page, right here in this tab. Pages get sorted the way a human would sort them, so page 2 lands before page 10.
Drop your CBZ file here
or click to browse (also works with plain ZIPs of images)
What a CBZ actually is
A CBZ is a zip file. Inside it are the comic pages, usually as JPG or PNG. A dedicated comic reader knows how to flip through that zip in order. A PDF reader doesn't need to know anything special, which is why turning a CBZ into a PDF makes it readable on a Kindle, an iPad, a Windows laptop, or any old phone.
A few things this does well
- Keeps your files local. The pages never go to a server.
- Sorts pages like a person. Plain alphabetical puts page 10 before page 2. This one doesn't.
- Handles long volumes. No upload cap, since there's no upload.
- Two sizing modes. "Fit to A4" if you want to print or share. "Original size" if you want every pixel of the high-res panels.
What about CBR files?
CBR uses RAR, which is proprietary and a pain to decode in a browser without dragging in a huge WebAssembly bundle. So this page doesn't try. The workaround: rename your .cbr to .rar, extract it with 7-Zip or The Unarchiver, then zip the resulting images. Drop that zip here.
About the CBZ format
CBZ stands for Comic Book ZIP. It's a ZIP archive whose contents are simply image files — usually JPGs or PNGs — named in the order the pages should display. The "format" is a convention more than a standard: it was popularized by community comic readers like CDisplay in the early 2000s. There's no DRM, no metadata required, and no central authority. Any tool that can unzip can read a CBZ. Sister formats CBR (RAR), CB7 (7z), and CBT (TAR) follow the same idea with different compression. The simplicity is the appeal — and the reason scanlation groups and digital preservationists settled on it.
About the PDF format
PDF was introduced by Adobe in 1993 to keep document layout consistent across devices. It's been an open ISO standard (ISO 32000) since 2008. A PDF can store text, fonts, vector graphics, and raster images at fixed positions on each page. For comics specifically, the PDF is acting as a thin wrapper around a stack of images — same job a CBZ does, but with one advantage: every device on earth has a PDF reader. Phones, tablets, e-readers, work laptops with locked-down software, the public library kiosk. CBZ requires you to install something. PDF doesn't.
When to use CBZ to PDF (and when not to)
Useful when:
- You want to read a comic on a Kindle, Kobo, or other e-reader that doesn't have a CBZ app.
- You're sending pages to someone who has no idea what a CBZ is.
- You want to print a single volume on paper.
- You need to keep a long-term archive in a more universally-supported wrapper.
Not the right call when:
- You already use a proper comic reader (CDisplayEx, ComicRack, Panels, Chunky). Those handle CBZ natively and faster.
- The CBZ has full bleed, double-page spreads, or right-to-left manga layout — PDF readers often add gutters or mess up the spread joins.
Common problems and how to fix them
- Pages out of order. The CBZ's images aren't zero-padded (page1.jpg, page10.jpg, page2.jpg). This converter handles natural sort, but if the result is still off, rename the files with leading zeros before zipping.
- PDF is huge. High-resolution scans at original size produce monster PDFs. Switch to "Fit to A4" — most readers can't display more pixels than that anyway.
- First page is the back cover. Some CBZs include a thumbnail or rear cover named alphabetically before the front cover. Rename or remove those files in the source ZIP.
- Two-page spreads split awkwardly. A landscape spread becomes two skinny portrait pages. There's no fix inside this tool — you'd need a desktop comic-aware converter.
- Manga reads left-to-right when it shouldn't. The PDF format has no concept of right-to-left page order. Your reader app needs the option set manually.
- Conversion fails on a huge CBZ. Past about 500 MB the browser may run out of memory. Split the volume into two ZIPs and convert separately.
Frequently asked questions
Does the comic get uploaded?
No. JSZip and the canvas API do all the work inside your browser tab. Disconnect from the internet after this page loads and the converter still runs.
What's the largest CBZ this can handle?
A few hundred megabytes on a laptop with reasonable RAM. Phones with 4 GB may struggle past 200 MB. Split large omnibuses into separate volumes.
Will this work on iPad?
Yes. Safari handles the conversion. The resulting PDF saves to the Files app and opens cleanly in Books or any third-party reader.
Will the PDF be searchable?
No — the pages are images. To make a comic PDF searchable you'd need to run OCR on it afterward, and OCR generally does poorly on stylized comic lettering anyway.
What if my file is CBR or CB7?
CBR is rarchived; this tool can't read it in-browser. Extract it with a desktop tool and re-zip the images, then come back. CB7 (7-Zip) has the same issue.
Can I bundle multiple CBZs into one PDF?
Not in one shot. Convert each CBZ separately, then merge the resulting PDFs with any standard PDF merger.