Convert legacy PowerPoint PPT presentations to PDF online for free. Fast, secure, browser-based conversion — no signup, no software to install.
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PDF is the universal fixed-layout document format — it renders identically across viewers, preserves fonts and formatting, and is the accepted-by-default format for invoices, contracts, government uploads, academic submissions, and portfolio work. Convert to PDF when the receiving system explicitly wants PDF or when the layout must not shift.
PPT is the legacy presentation format used by Microsoft PowerPoint from version 97 through 2003. It stores slides, speaker notes, animations, and embedded media in a proprietary binary structure. PPT files were the universal standard for business presentations and academic lectures before being replaced by the modern PPTX format in Office 2007.
PPT files can still be opened in modern PowerPoint, Google Slides, LibreOffice Impress, and most presentation software. However, some advanced formatting may not render correctly in newer applications. The binary PPT format also produces larger file sizes than PPTX and lacks features like co-authoring and improved data recovery. Converting legacy PPT files to PPTX is recommended for better compatibility and smaller file sizes.
Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert PPT files to PDF.
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