Scanning signed contracts, paper invoices, travel receipts, or class notes is a daily task for millions of students and professionals. However, not everyone has a physical desktop scanner at home or in the office. The great modern alternative is **using the phone camera to take photos and compile them into a PDF file**.

"With ReaderPDF's new 'Camera to PDF' tool, you can activate your phone or computer camera directly, capture multiple sequential photos and generate a professional PDF with maximum security: your photos never leave your device."

The privacy danger of scanning private documents

To convert photos to PDF, most users resort to commercial mobile applications. Although they seem harmless, many of these apps analyze your documents using cloud algorithms, show invasive advertising, apply annoying watermarks, or require you to pay a monthly subscription to export files of more than three pages.

At ReaderPDF we have designed an alternative thought out to protect your privacy and save you time:

How to use the Camera to PDF tool step by step

The tool's workflow has been polished to be highly intuitive and fluid, both on desktop computers and smartphones:

  1. Start the camera: Open the tools suite and select **"Camera to PDF"**. In the viewer, click **"Start Camera"** and accept the browser permissions.
  2. Select your camera: If you use a phone with multiple cameras (front and rear lens), a **"🔄 Switch Camera"** button will automatically appear allowing you to choose the high-resolution rear lens for a better focus of the document.
  3. Take the captures: Align the document on the screen and press **"📸 Take Photo"**. The capture will be immediately added as an interactive thumbnail to the side or bottom panel. You can repeat the process for all the pages you wish to scan.
  4. Organize and edit your photos: Did one of the photos come out blurry? Press the delete button (✕) over the thumbnail and retake it. A sequence error arose? Use the arrow buttons (◀ / ▶) to rearrange the page sequence. You can also import existing images from your gallery using the "Upload image files" button.
  5. Define your output settings:
    • Page size: Choose between standard A4, Letter or "Fit to photo size" (which preserves the original proportion of each shot).
    • Margins: Select "No margins" for an immersive edge-to-edge presentation, or add small or large elegant margins.
  6. Download your PDF: Press **"Generate PDF with Photos"**. In less than a second, the download of the structured PDF will start automatically.

An indispensable ally for mobile digitization

Since ReaderPDF is developed as a Progressive Web App (PWA), you can install it directly on your phone's home screen (Android or iOS). This allows you to carry an ultra-fast and secure pocket scanner with you at all times. Digitize invoices on the go during corporate trips, keep copies of your receipts, or instantly share handwritten notes in PDF with your classmates.

Do you have a physical document nearby?

Try the Camera to PDF tool now from your phone or computer and create your digital document in seconds 100% privately.

Scan Document with Camera
Mateo Rosales — Editorial Director

Written by Mateo Rosales

Mateo Rosales is the Editorial Director of ReaderPDF. Committed alongside our technical team to the development of local and secure web tools to enhance accessibility, reading, and school productivity without compromising your privacy.