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What is a PDF file?
PDF (Portable Document Format) is a widely-used file format developed by Adobe to present documents independently of software, hardware, or operating system. It maintains the layout, fonts, and images of the source file.
PDF is ideal for printing, archiving, and sharing due to its consistency and support across virtually all platforms. It supports multimedia, forms, and encryption, making it a versatile choice for both simple and complex documents.
How to open PDF files
PDF files can be opened with any modern browser or dedicated reader like Adobe Acrobat Reader. Many word processors and e-readers also support this format.
Use AnyConv to convert PDF files to DOCX, JPG, or TXT depending on your needs.
Key facts about PDF
- Full name: Portable Document Format
- Extension: .pdf
- MIME type: application/pdf
- Developed by: Adobe Systems
- Initial release: 1993
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What is a PDB file?
PDB (Palm Database) is a versatile container format originally developed for Palm OS. It was used for various types of data, including eBooks, contacts, and applications.
For eBooks, PDB files were commonly associated with the eReader platform by Palm Digital Media. The format has since faded in popularity, but some readers like Calibre still support it.
How to open PDB files
PDB eBooks can be opened using Calibre, eReader Pro, or legacy Palm devices and emulators. Not all PDB files are eBooks, so tools must match the file's original purpose.
Use AnyConv to convert PDB to EPUB or MOBI formats to improve compatibility with modern readers.
Key facts about PDB
- Full name: Palm Database eBook
- Extension: .pdb
- MIME type: application/vnd.palm
- Developed by: Palm, Inc.
- Initial release: 1996
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❓ Frequently Asked Questions
- Do I need to register to convert PDF files?Not at all! You can convert PDF to PDB without signing up or installing anything.
- Is it safe to convert PDF to PDB on AnyConv?Absolutely. All PDF and PDB files are securely handled and automatically deleted after 1 hour. Nobody can access your data.
- Will the quality change after converting PDF to PDB?We do our best to preserve the original quality during PDF to PDB conversion. The result is accurate and clean.
- How long does it take to convert PDF to PDB?Most conversions from PDF to PDB take just a few seconds — even for larger files.
- Can I upload more than one PDF file?Yes, batch conversion is supported. You can convert multiple PDF files to PDB at once — fast and easy.
- What browsers support PDF to PDB conversion?All modern browsers! Chrome, Firefox, Safari, Edge — AnyConv runs online and supports converting PDF to PDB on any platform.