Analyze & Explain a Study PDF
Upload a study PDF — its text is read inside your browser, every question is explained with a worked answer, and you get an editable document ready to download as a PDF.
Read it, understand it, then decide for yourself
Upload a lecture sheet, worksheet or problem set and this tool reads it inside your own browser, then works through each question with a clear explanation you can edit before downloading it as a PDF. Only the text of the questions is sent to the AI provider — never the file itself, your name or any personal data.
- Upload a PDF or TXT file (up to 8 MB) — or paste its text straight into the box.
- Check the extracted text: scanned image-only files have no text layer, so paste the text yourself if the box comes back empty.
- Review the explanations in the preview, correct anything, then generate the PDF with page numbers.
The language of the generated document.
Review & Edit
Edit any section below — your edits will appear exactly in the final PDF.
Almost there
Review the sections above and edit anything you like — your edits appear exactly in the final PDF.
How a study PDF becomes a reviewable study document
Reading a worksheet on a phone is painful, and re-typing it wastes an evening. This tool does the mechanical part for you: it extracts the text of your file inside your browser, sends only the question text to the AI provider, and returns an explanation of each question as editable text — which you check, correct and only then turn into a PDF. The original file never leaves your device.
- Choose the language of the explanations (Arabic or English) on the first step.
- Upload the file with the choose-file button or by drag and drop — PDF or TXT, up to 8 MB. The name and character count appear once it has been read.
- Inspect the extracted text. This is the step people skip and then regret: a wrong character in a formula changes the whole answer. Fix any OCR or encoding mistake you see.
- Read the explanations critically. Work through the first line of each answer yourself before reading on — you are studying, not just collecting answers.
- Edit, then generate. Every section is editable in the preview; the final PDF is formatted with a table of contents and page numbers.
Scanned files, long files and other edge cases
A scan is not a document. If the PDF is photos of pages, it has no text layer: the extracted text will be empty and the tool will tell you so. Paste the text into the box yourself and everything continues as normal. A text-based PDF — anything you can select with the mouse — works immediately.
Long files are split. The text is cut into chunks of a few thousand characters that are processed in parallel, then joined in order, so a 40-page handout does not take 40 times longer than a one-page sheet.
Formulas and symbols. Mathematical content is kept in plain Unicode (× ÷ √ π ² ³ ≤ ≥ ≠), so it survives the round trip into the PDF without broken images or unreadable LaTeX.
Using explanations responsibly
An explanation is a study aid, not a substitute for understanding. Universities treat submitted work that is not your own as a breach of academic-integrity rules, so use this tool the way you would use a answer key: try the question first, read the explanation to check your reasoning, and never hand in generated text without reading, correcting and owning it. You are responsible for how you use what you produce.
Privacy, formats and price
Everything you upload is parsed in your own browser. Only the question text is sent to the AI provider to be explained, and it contains no name, student ID or personal data; nothing is stored by us. Supported inputs are PDF and TXT up to 8 MB, in Arabic or English, on desktop and mobile — free, with no account and no watermark. See the Privacy Policy for the full data flow.