When this is useful

For speed, exposure, previewing and review. You don’t have to absorb every sentence equally on every pass.

Choose a PDF with selectable text or paste a passage. Both inputs are processed locally and feed the same reader. Scanned PDFs are not supported.

Choose the route that fits the job. Neither is universally better.

As a planning example, a 45-minute first pass might become 15–20 minutes, followed by 5–10 minutes reviewing notes or a summary. Savings are not guaranteed: length, WPM, difficulty, pauses and rewinds all matter.

Academic PDFs contain things that help on paper but can interrupt a word-by-word read: author names, citations, reference numbers, footnotes, figure and table references, journal information and repeated source attribution.

For pure review, you may prefer a clean study summary. Copy the prompt above into your own AI tool, provide your material there, then paste the result here. Keep names and citations when your course or exam needs them, and check the summary against the original.

This app does not connect to AI or send it your documents. If you choose to share a paper with another tool, that tool’s privacy practices apply.

WPM means words per minute. Here, it controls how quickly words are presented—not how much you understand.

Before you press Start Reading, lower the reader’s default 600 WPM to around 250–300. You can adjust the pace at any time.

1. 250–300 WPM

   Read for 30–60 seconds. Ask: “Can I follow the main idea without feeling rushed?”

2. 325–350 WPM

   Try another short section. In the current reader, use the 350 WPM setting.

3. 400–450 WPM

   Try this only if comprehension still feels comfortable.

4. +50–100 WPM

   Move up in small increments. After each section, summarize its main point to yourself.

5. Know when to stop

   Stop increasing when sentences stop connecting, you notice words but not meaning, you repeatedly rewind, or you cannot summarize a paragraph. Return to the last comfortable pace: that is your current useful speed for this kind of material.

Your useful speed can change with text difficulty, topic familiarity, native versus second language, fatigue and your purpose for reading.

These ranges are practical UX guidance, not scientific thresholds. Choose by what you can follow, not by the biggest number.

Read the first pass at a comfortable speed. On the second, try approximately 50–100 WPM more. Increase again on later passes only if the material still feels familiar and understandable.

1. Pass 1350 WPM
2. Pass 2450 WPM
3. Pass 3550 WPM
4. Pass 4650 WPM

These speeds are examples, not mandatory targets. Rereading familiar material can make higher presentation speeds feel easier because you already know the content.

If you briefly lose the thread during broad review or repetition, you can keep going: context may make the point clear again. Rewind or slow down when the missed passage contains something important, or when the meaning does not return.