K2pdfopt
A tool that reflows and resizes PDF and DjVu files for reading on e-readers and phones.
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About K2pdfopt
K2pdfopt reworks PDF and DjVu files so they are readable on small screens such as a Kindle or a smartphone. It handles multi-column layouts well and can reflow text even in scanned PDFs, turning a letter-size page into pages sized for a 6-inch reader or a 4-inch phone.
It also works as a general tool for copying, cropping, resizing and OCR on PDFs, producing native or bitmapped output with an optional OCR text layer. Builds are offered for Windows, macOS and Linux; the Windows version includes a GUI.
Strengths
- Reflows multi-column and scanned PDFs for small screens
- Optional OCR layer on output
- Also crops, resizes and copies PDFs
Limitations
- Graphical interface is built in only on Windows
- Releases are infrequent, the latest being v2.55 from December 2023
- Output is still PDF rather than EPUB or MOBI
Details
- Pricing
- FreeFree to download; the developer states it is open source.
- License
- Open source, license not stated
- Developer
- Willus.com
- Platforms
- Windows, macOS, Linux, Command line
- How it runs
- Downloadable app
- Account
- Not required
- Works offline
- Yes
- Best suited for
- Reading academic or multi-column PDFs on a Kindle or phone
- Categories
- PDF tools, Ebook tools
- Last verified
- Added
- Provenance
- Facts checked against the developer's own pages and store listings, 1 sources on file.
Alternatives to K2pdfopt
Compare allSoftware that can replace K2pdfopt for an important use case, and what changes if you switch.
krop
Simple graphical tool for cropping PDF pages and splitting them into subpages for e-readers.
krop crops pages and splits them into subpages through a simple graphical interface on Linux and macOS, but does not reflow text or add OCR.
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