Image & PDF to Text — Full Guide
Everything you need to know about converting images (JPG, PNG, screenshots, photos) and PDF documents into editable text using OCR. Step-by-step instructions, tool reference, visual walkthrough, FAQs, and pro optimization tips — all in one place.
How to Use — Step by Step
Follow these six steps to extract text from any image or PDF. The entire process runs in your browser — your files never leave your device.
Upload an Image or PDF
JPG PNG PDFOpen the Image to Text tool and tap the upload area (or drag & drop your file). Supported formats include JPG, PNG, WEBP, BMP, GIF, and PDF (multi-page PDFs are fully supported).
Wait for Auto-Extraction
Auto OCR FastOnce the file loads, the OCR engine automatically scans the entire document in the background. A subtle hint will appear when text is ready. You can start using the tools immediately — no need to wait.
Select & Copy Specific Text
Select ModeClick the Select button (purple icon), then drag a rectangle over any region of the image. The tool reads that area with OCR and copies the text to your clipboard automatically. A green toast confirms the copy.
Crop the Image (Optional)
Crop OptionalClick Crop, drag to select the area you want to keep, then tap ✓ Apply Crop. This is useful to remove borders or focus on a specific section. Use Restore to undo the crop anytime.
Extract Tables for Excel
Excel TableClick the Table button. The tool detects columns and rows from the OCR result and copies them as TSV (tab-separated values). Paste directly into Excel or Google Sheets — columns auto-fill perfectly.
Save or Export
Export PDF PNG TXTClick Save to download your result in one of three formats:
- PDF — A4 centered with 1-inch (25.4mm) margins
- PNG — high-quality image of the current view
- TXT — plain text file with all extracted text (layout preserved)
You can also Print directly using the blue print button.
Tools & Buttons Reference
Every button in the toolbar explained — what it does and when to use it.
| Tool Button | What It Does Action |
|---|---|
| Reset View | Resets zoom, rotation, and position to the default fit-to-view state. |
| Rotate Transform | Rotates the image 90° clockwise. Useful for sideways scans or photos. |
| Zoom Out View | Decreases zoom level. Panning becomes available when zoomed beyond fit. |
| Zoom In View | Increases zoom level for closer inspection of small text. |
| Crop Crop | Enter crop mode. Drag to select the area you want to keep, then apply. |
| Restore Undo | Restores the original image after a crop has been applied. |
| Select Select OCR | Enter select mode. Drag over any region to OCR and auto-copy the text. |
| Table Excel | Detects table structure and copies it as TSV — paste directly into Excel. |
| Save Export | Opens the save dialog: PDF, PNG, or TXT export options. |
| Print Print | Opens the browser print dialog with A4 layout and 1-inch margins. |
| Close Exit | Resets the viewer to the welcome screen and clears the current file. |
Pro Tip Tip Pan & Zoom
Panning and dragging are only enabled when you zoom beyond the fit level. This prevents accidental movement when the whole image is visible. Zoom in first, then pan freely.
Visual Walkthrough
A quick visual overview of the four main stages. The working demo is available at Shorts Infox Image to Text — try it live!
Upload JPG PDF
Tap the welcome screen to choose an image or PDF from your device.
Select Region OCR
Use Select mode, then drag over the text you need to extract.
Auto-Copy Instant
Text is OCR'd instantly and copied to your clipboard. Paste anywhere.
Save / Export TXT/PDF
Download as PDF, PNG, or TXT — or print directly with one click.
What Each Stage Looks Like Walkthrough
When you first open the tool, you'll see a welcome screen with a large 📎 icon and the message "No File Selected — Tap here to choose a file." After uploading, the image appears with a toolbar above it. The Select and Crop buttons are highlighted in purple and teal respectively so they're easy to spot.
During region selection, a blue dashed rectangle follows your drag. When you release, a blue loading pill appears ("Reading region..."), followed by a green result pill showing a preview of the extracted text. A toast at the bottom confirms "✓ Region copied".
How the OCR Works
A peek under the hood — the technologies and algorithms that power the conversion.
The tool uses Tesseract.js OCR Engine — a pure JavaScript OCR engine powered by WebAssembly. It runs entirely in your browser, so your files never leave your device. PDFs are rendered using PDF.js PDF Renderer, and exports use jsPDF Exporter for PDF generation.
// Simplified OCR pipeline:
// 1. Load image or render PDF page to canvas
// 2. (Optional) Crop or select a region
// 3. Pass canvas / dataURL to Tesseract.js
const result = await tesseractWorker.recognize(source);
// 4. Reconstruct layout from word bounding boxes
const text = reconstructLayoutText(result.data);
// 5. Copy to clipboard / save
Layout Reconstruction Algorithm
The layout reconstruction algorithm groups words into lines based on vertical overlap, then preserves horizontal spacing. This keeps tables and columns readable when copied to Excel or a text editor. Here's how it works:
- Extract word-level bounding boxes from Tesseract's output.
- Sort words by vertical center (top to bottom).
- Group words into lines when their vertical centers overlap within a threshold.
- Sort each line's words left-to-right by x-coordinate.
- Insert spaces between words based on horizontal gap relative to average character width.
- Join lines with newline characters.
Table Detection Excel Ready Feature
Table detection analyzes the OCR word boxes to find column boundaries. It measures the horizontal gap between consecutive words in a row — when the gap exceeds roughly 2.2× the average character width, it treats that as a column separator. The result is exported as TSV (tab-separated values), which Excel and Google Sheets recognize as column breaks when pasted.
Privacy First Security No Signup
All processing happens locally in your browser using WebAssembly. No data is uploaded to any server. Your documents remain completely private.
Frequently Asked Questions
Common questions about OCR accuracy, supported formats, privacy, and more.
Is this really free? Free No Signup
+Yes — 100% free, no signup, no limits. Everything runs locally in your browser using open-source libraries. There are no hidden fees, watermarks, or usage caps.
What languages are supported? 100+ Languages
+The demo loads English by default. Tesseract.js supports 100+ languages — you can change the language code when creating the worker. Supported languages include Spanish, French, German, Chinese, Japanese, Korean, Arabic, Hindi, Russian, and many more.
Can I extract text from handwritten notes? Handwriting
+Yes, but accuracy depends on handwriting clarity. Tesseract works best with printed text. For handwriting, try our dedicated Handwriting-to-Text tool which uses a fine-tuned model. Clear, well-spaced handwriting in block letters gives the best results.
How do I copy a table into Excel? Excel Table
+Click the Table button. The tool detects columns and copies TSV (tab-separated values). Paste directly into Excel or Google Sheets — columns will auto-fill. If the table isn't detected, try cropping to just the table area first.
Are my files uploaded to a server? Privacy Local
+No. All processing happens in your browser using WebAssembly. Your files never leave your device. This makes the tool safe for sensitive documents like contracts, medical records, and financial statements.
Why is the text sometimes garbled? Troubleshooting OCR
+Low-resolution images, unusual fonts, low contrast, or skewed text can reduce accuracy. Try cropping to the text area, zooming in, and ensuring the text is horizontal before selecting. For best results, use images at 300 DPI or higher.
Can I convert multi-page PDFs? PDF Scanned
+Yes. PDF files are rendered page by page using PDF.js. Use the page navigation arrows (◀ ▶) to move between pages. Each page is OCR'd independently, and you can save the extracted text from any page.
What image formats are supported? JPG/PNG/WEBP
+JPG, JPEG, PNG, WEBP, BMP, and GIF. For best OCR results, use PNG or high-quality JPG. Avoid heavily compressed images as compression artifacts reduce accuracy.
Optimization Tips
Get the highest possible accuracy from your OCR conversions with these pro tips.
Use High Resolution
Aim for at least 300 DPI. Higher resolution means clearer characters and better recognition accuracy.
Crop to the Text
Remove borders, logos, and background noise before running OCR. Less noise means cleaner results.
Straighten the Image
Tesseract works best with horizontal text lines. Use the Rotate button to fix tilted scans or photos.
Increase Contrast
If text is faint, boost contrast in an image editor before uploading. Dark text on a light background works best.
Clear Table Columns
For tables, ensure columns are separated by visible gaps. Avoid overlapping text or merged cells.
Use Common Fonts
Standard fonts like Arial, Times New Roman, and Calibri recognize best. Decorative fonts reduce accuracy.
Ready to Extract Text?
Open the free OCR tool on Shorts Infox and convert your first image or PDF in seconds.
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