Choose how AI summarizes your documents — and now download in Word

The most comprehensive ReaderPDF update to date is now available without having to do anything: simply upload your PDF and you will notice the changes. Renewed dark and light themes, AI summary with four tone styles, and direct download in Word (.docx) are the highlights of this version, but there are also viewer performance improvements, new keyboard shortcuts, and responsive design fixes for mobile devices.

Renewed interface themes: dark and light

The redesign of ReaderPDF's visual themes is not just cosmetic. The new dark theme uses a palette of deep blues and warm grays that reduces eye strain during night sessions, with guaranteed WCAG AA contrast on all text elements. The light theme migrates from a pure white to a soft ivory white that is less aggressive on high-brightness screens.

Both themes automatically detect the operating system preference (prefers-color-scheme) and can be changed manually from the selector in the toolbar. The transition between themes is now animated with a smooth 200ms fade, eliminating the sudden flickering of previous versions.

AI summary with four tone styles and guaranteed privacy

ReaderPDF's intelligent summary engine now offers four tone styles that determine how the AI structures and writes the result. This makes the tool useful for very different profiles:

• Humanized: Fluid and accessible prose, ideal for sharing the content of a technical document with a general audience or for taking personal reading notes.
• Technical: Preserves the specialized terminology and logical structure of the original. Recommended for engineers, scientists, and healthcare professionals.
• Direct: Concise bullet points format, without introduction or conclusion. Perfect for a quick review before a meeting or for building a list of action points.
• Academic: Follows the conventions of formal academic discourse: thesis, argumentation, and implicit citations. Designed for graduate students and researchers.

Privacy is a non-negotiable pillar: the summary is generated using the Gemini API invoked through a Netlify serverless function. The text of the document is sent to the API at the time of the request and Gemini does not store it permanently according to its terms of service for API usage. The resulting summary is displayed directly in the browser and disappears when you close the session; ReaderPDF does not save the original text or the summary on any of its own servers.

Step by step: using the AI summary and downloading in Word

1. Step 1: Go to ReaderPDF and sign in with Google to access the AI functions.
2. Step 2: Upload your PDF or Word (.docx) file by dragging it or using the upload button.
3. Step 3: Wait for the text to be extracted; you will see the word counter update in real-time.
4. Step 4: Select the desired summary style (Humanized, Technical, Direct, or Academic) in the buttons that appear under the viewer.
5. Step 5: Click on "✨ Summarize with AI" and wait between 5 and 15 seconds depending on the length of the document.
6. Step 6: When the summary appears, choose 📄 PDF or 📘 Word to download it directly to your device.

Most frequent use cases

The combination of tone styles plus download in Word opens up use cases that previously required several different steps and tools:

• Lawyers and consultants who need to extract key points from an extensive contract and send the summary to a client in editable Word format, with their own letterhead added.
• University professors who summarize academic articles in a Humanized style to create accessible reading materials for their students.
• Journalists and communicators who process government reports or corporate logs and need a draft article in direct language as a starting point.

Frequently Asked Questions

Is the content of my PDF stored on ReaderPDF servers?

No. ReaderPDF does not store the content of your documents on any of its own servers. The text is sent to the Gemini API only during the summary generation process, through a Netlify function that acts as a secure intermediary. Once the summary is generated, the original text is not kept in any ReaderPDF system.

Is there a page or word limit for the AI summary?

The current limit is approximately 15,000 words per summary request, which is equivalent to about 50-60 pages of standard text. For longer documents, it is recommended to summarize by sections or chapters. This limit may be updated in future versions based on changes to the Gemini API context limits.

Does the downloaded Word file preserve the summary formatting?

The downloaded .docx file includes the text of the summary with the structure of paragraphs and lists generated by the AI. It does not replicate the visual formatting of the ReaderPDF interface (colors, fonts), as the goal is to deliver a clean document that is editable in any word processor compatible with the .docx format, such as Microsoft Word, Google Docs, or LibreOffice.

Mateo Rosales

Digital productivity and PDF tools specialist. Writes about privacy, accessibility, and frictionless workflows.