What Kind of File Types Can I Upload?
ReadTime.io supports multiple file formats to help you calculate reading time for various types of content. Here's everything you need to know about our supported file types.
Quick Answer
ReadTime.io can process PDF files, text files (.txt), and markdown files (.md). These formats allow us to extract text content accurately and provide precise reading time calculations for your documents and content.
Supported File Types
PDF Files
Portable Document Format files are fully supported
Features:
- Extract text from multi-page documents
- Preserve formatting and structure
- Handle most PDF versions
- Process scanned PDFs with text layer
Text Files
.txt
Plain text files with UTF-8 encoding support
Features:
- Cross-platform compatibility
- Preserve line breaks and formatting
- Handle large files efficiently
- Support various text encodings
Markdown Files
.md, .markdown
Markdown files for documentation and content
Features:
- Parse markdown syntax properly
- Handle headers, lists, and formatting
- Support GitHub-flavored markdown
- Extract plain text for analysis
How File Processing Works
Upload Your File
Simply drag and drop or select your PDF, text, or markdown file using our file uploader.
Text Extraction
Our system extracts the text content from your file while preserving the structure and formatting.
Calculate Metrics
Get instant reading time calculations, word count, character count, and other useful metrics.
Detailed File Type Information
PDF Files (.pdf)
PDF (Portable Document Format) files are one of the most common document formats. Our system uses advanced PDF processing to extract text content from your documents, regardless of how they were created.
Best practices for PDF uploads:
- • Ensure your PDF contains selectable text (not just images)
- • Text-based PDFs work better than scanned documents
- • Multi-page documents are fully supported
- • Password-protected PDFs need to be unlocked first
Text Files (.txt)
Plain text files are the simplest and most reliable format for text analysis. They contain pure text without any formatting, making them perfect for accurate word and character counting.
Text file advantages:
- • Fastest processing time
- • Most accurate text extraction
- • Universal compatibility
- • Preserves line breaks and spacing
Markdown Files (.md, .markdown)
Markdown files are popular for documentation, README files, and content creation. Our system parses the markdown syntax and extracts the plain text content for analysis.
Markdown processing features:
- • Handles headers, lists, and formatting
- • Supports GitHub-flavored markdown
- • Ignores markdown syntax in word count
- • Preserves text structure for accurate analysis
Currently Unsupported Formats
While we support the most common text-based formats, some file types are not currently supported. For these formats, we recommend converting them to PDF or text format first.
Need to process other formats?
Convert your documents to PDF or export the text content to a .txt file for the most accurate results.
Frequently Asked Questions
What's the maximum file size I can upload?
Our system can handle files up to 10MB in size. This is sufficient for most documents, including lengthy PDFs and text files. If your file is larger, consider splitting it into smaller sections.
Do you store my uploaded files?
No, we do not store your files on our servers. File processing happens entirely in your browser, and the text content is only kept in memory temporarily for analysis. Your privacy and data security are our priorities.
Why aren't Word documents supported?
Word documents (.doc, .docx) require complex processing to extract text content reliably. For now, we recommend exporting your Word document as a PDF or copying the text to a .txt file for analysis.
Can I upload multiple files at once?
Currently, our system processes one file at a time. After analyzing one file, you can easily upload and analyze another. We're considering bulk upload features for future updates.
Ready to Analyze Your Files?
Upload your PDF, text, or markdown files now and get instant reading time calculations, word counts, and detailed text analysis.
Start Analyzing Files