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Work & DocumentsPDF Slide Editor

PDF Slide Editor

Fix and update text in any PDF slide deck, directly in your browser — no desktop software needed.

Overview

PDF Slide Editor lets you upload a PDF presentation, detect text regions using OCR, and edit each one in place. You can change wording, adjust styling, reposition text, and export a clean new PDF with your edits applied. Everything except OCR runs in the browser, so your file never leaves your device.

The most common use case is fixing text in slides exported from NotebookLM or similar tools, where you want to correct wording without rebuilding the whole deck.

How to Access

  1. Open the sidebar menu
  2. Click Other Features
  3. Select PDF Slide Editor under Helper Series

What You Can Do

  • Upload a PDF slide deck (up to 50 MB) and view each page as an image
  • Run OCR on any slide to detect text regions automatically
  • Click a detected region to edit its text content
  • Change the font family — six options available, with several designed for CJK (Chinese, Japanese, Korean) text
  • Apply bold or italic styling to individual text regions
  • Drag text regions to reposition them on the slide
  • Delete text regions you don’t need
  • Export the finished deck as a new PDF file

Step-by-Step Guide

Upload Your Slide Deck

  1. Open PDF Slide Editor from the sidebar
  2. Click to upload your PDF file — the file must be 50 MB or smaller
  3. The app extracts every page as an image and displays them in order
  4. You’re now in the editing view

Detect Text with OCR

  1. Navigate to the slide you want to edit
  2. Click Run OCR on that slide
  3. The app scans the page and draws clickable overlay boxes over each detected text region
  4. Repeat this for any other slides you want to edit — you don’t have to OCR every page, only the ones you need to change

Edit Text and Styling

  1. Click any detected text region to select it
  2. Edit the text directly in the input that appears
  3. Choose a font family from the six available options — if your slide contains Chinese or other CJK characters, pick a font that supports them
  4. Toggle Bold or Italic as needed
  5. To reposition a region, drag it to a new location on the slide canvas
  6. To remove a region entirely, click the delete control on that region

Export as PDF

  1. When you’re happy with your edits across all slides, click Export
  2. The app re-renders all edited pages with your changes applied
  3. A new PDF downloads to your device

Tip: Fixing NotebookLM Slides

NotebookLM’s exported slide decks often contain text that’s embedded as part of the page image — which means you can’t edit it in a normal PDF viewer. PDF Slide Editor is designed for exactly this situation. Upload the exported PDF, run OCR on the slides with text errors, fix the wording, and export a clean copy.

Common Questions

The OCR didn’t detect some text on my slide. OCR works best on clear, high-contrast text. Decorative fonts, very small text, or text on a busy background may not be detected reliably. You can still manually place a new text region over those areas if needed.

My PDF is over 50 MB. What can I do? Try splitting the deck into smaller files using a free PDF splitting tool, then edit and export each part separately.

The exported PDF looks different from the original layout. Only the text regions you edited are re-rendered. If you moved or resized a region significantly, it may not align with the original background. For best results, keep edits close to the original position and size.

  • PPT Generator — Create a slide deck from scratch using markdown
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