Convert PDF & PowerPoint to Text – Free OCR Tool
Supported formats: PDF, PPT, PPTX. Your files are processed securely and never stored.
Currently supported options and what they do
Upload and convert your PDF or PPTX file and convert it into editable text using OCR. This tool is ideal for extracting text from slides or scanned documents with precision.
Greyscale Processing
Enable Greyscale Processing to improve OCR accuracy, especially for scanned documents with colorful or complex backgrounds. Greyscale can reduce visual clutter and enhance text clarity.
Select DPI (Resolution)
Choose the DPI (Dots Per Inch) to control the resolution of image rendering before text extraction. Higher DPI values improve recognition of fine symbols and characters, but may introduce visual "noise"—such as random single characters or symbols—especially in low-quality scans.
Language Selection
Select the OCR
languages present in your uploaded file. This helps optimize text extraction accuracy.
The default language is eng
(English), but you can choose multiple languages as needed
depending on the document’s content.
Contrast Adjustment
Use the contrast adjustment slider to enhance the visual definition of text against the background. Increasing contrast can make characters more distinguishable, improving OCR accuracy—especially for faint or low-contrast scans. The contrast level ranges from 1 (low) to 15 (high), with a default value of 5, offering a balanced level of enhancement.