Click the "Select File" button above, and choose your PDR file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert PDR to another file type
To convert your PDR file to another format, you need PlanetPDF Reader or other E-Book software.
Convert a file to PDR
To convert other file formats to the "Legacy Mobile Document" file type, you need software like PlanetPDF Reader or a similar tool.
About PDR files
The .PDR extension presents a classic digital ambiguity: it is either a legacy ebook or a critical system component. Most commonly for archiving purposes, this file is a Palm OS PDF document associated with PlanetPDF. Designed for the constrained memory and low-resolution screens of late-90s Palm Pilot devices, these files are essentially proprietary wrappers around text or PDF data. The friction today is substantial: standard readers like Adobe Acrobat or modern web browsers cannot render them, leaving your content locked in an obsolete mobile ecosystem. To access this data, the best workflow is converting the file to a standard PDF for archiving or EPUB for modern e-readers.
However, you must exercise caution. A significant number of .PDR files are Windows Port Drivers, specifically used by Microsoft Windows to manage virtual printer ports and communication channels. These are binary system files often found in the System32 directory. You cannot "open" these in a text editor, and attempting to convert them is futile. Deleting them can break printer functionality. Less frequently, you might encounter a .PDR as a ProntoDoc recovered document or a Canadian Forces performance review.
Convert.Guru analyzes your PDR file, detects the exact format, and lets you read the text inside.
If you want to convert PDR file to PDF, INDD, QXP, PUB, PMD, PM6, PM7, PM8, PM9, PM10, PM11 or OMP, you can use PlanetPDF Reader or similar software from the "Legacy Mobile Document" category. In the File menu, look for Save As… or Export….
To convert MDI, PUB, PDP, PM4, P65, COMIC, WEBTEMPLATE, PMD, SPUB, INDD, PM5 or QXP files to PDR, try PlanetPDF Reader or another comparable tool in the "Legacy Mobile Document" category.
The PDR Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our PDR converter.