Help center
FAQ
Answers about browser-based CBZ and ZIP comic conversion, privacy, page order, PDF layout, supported formats, and common troubleshooting cases.
Files and Privacy
What is a CBZ file?
A CBZ file is a ZIP-based comic book archive. It usually contains numbered image files that represent comic or manga pages.
Is a CBZ file the same as a ZIP file?
Technically, a CBZ file is usually a ZIP archive with a .cbz extension. The extension tells comic reader apps to treat the ZIP contents as comic pages.
Can I convert a ZIP comic archive to PDF?
Yes, if the ZIP archive contains supported comic page images such as JPG, PNG, or WEBP files. The converter reads ZIP and CBZ archives in the browser.
Are my files uploaded to a server?
No. The archive is opened in your browser and the PDF is generated locally. Your comic pages are not uploaded to a conversion server.
Does the site store my generated PDF?
No. The generated PDF download link exists in your current browser session. Closing or refreshing the page clears the temporary preview and download link.
Format Support
Which image formats are supported?
This version supports JPG, PNG, and WEBP images inside CBZ or ZIP archives.
Does it support CBR files?
Not yet. CBR files use RAR compression, which needs a separate parser and heavier browser support than ZIP-based CBZ files.
Does it support password-protected archives?
No. Password-protected or encrypted archives are not supported in this version.
Why are ._001.jpeg files ignored?
Those are macOS metadata files sometimes included in ZIP archives. They are not real comic pages, so the converter skips them.
Why is the __MACOSX folder ignored?
The __MACOSX folder stores macOS archive metadata. It does not contain normal comic pages and should not be included in the final PDF.
Page Order and Layout
How does page sorting work?
The converter uses natural sorting, so 2.jpg comes before 10.jpg. This keeps numbered comic pages in a more readable order than basic alphabetical sorting.
What if my pages are still out of order?
Check the original file names inside the archive. Consistent names such as 001.jpg, 002.jpg, and 003.jpg are easier to sort correctly than mixed names from different folders.
What does Use image size mean?
Use image size creates PDF pages based on the original comic page dimensions. This is often best when you want the PDF to preserve the source page shape.
When should I use A4 or Letter?
Use A4 or Letter when you need a standard document page size for printing, sharing, or reading in apps that handle standard PDF pages better.
What does Fill page do?
Fill page makes the image occupy more of the PDF page. Depending on the original page shape, it may crop or scale differently than fitting the whole image.
Does image clarity affect file size?
Yes. Higher clarity can improve visual quality but may create a larger PDF. Lower clarity can reduce file size, which may help with large archives.
Large Files and Devices
Can I convert very large comics?
Large archives can work, but browser memory is the practical limit. Desktop browsers usually handle big books better than mobile browsers.
Why did my large CBZ fail?
The browser may have run out of memory while reading images or building the PDF. Try closing other tabs, using a desktop browser, lowering image clarity, or converting a smaller archive.
Can I batch convert multiple CBZ files?
Not in this version. Batch conversion is a natural next step, but it needs careful memory handling so the browser does not overload.
Can I merge multiple CBZ files into one PDF?
Not yet. The current converter handles one archive at a time. A future merge workflow could combine several chapters into one PDF.
Can I convert PDF back to CBZ?
No. This tool converts CBZ or ZIP comic archives into PDF. It does not extract PDF pages back into a CBZ archive.
Does the converter work on mobile?
It can work in modern mobile browsers, but large archives are more reliable on desktop because phones and tablets usually have stricter memory limits.
Can I use the converted PDF on Kindle?
You can transfer the downloaded PDF to Kindle or another e-reader workflow, but readability depends on page size, screen size, and image clarity. Test a short file first.
Is this converter free?
The current converter does not require an account or payment to convert a CBZ file in the browser.
Technical Notes
Why does WEBP get converted through JPEG?
PDF libraries handle JPEG and PNG directly. WEBP pages are drawn to a canvas first so they can be embedded reliably.