PDF Scanner
Scan documents with your camera or upload images to create PDF files
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Why Choose Our PDF Scanner
Professional online document scanning tool to make your work more efficient
Smart Edge Detection
Automatically identifies document boundaries and crops precisely without manual adjustment. Supports shooting from various angles with intelligent perspective correction.
AI Image Enhancement
Intelligently optimizes scanned images with automatic brightness, contrast, and clarity adjustments. Supports color enhancement and black & white modes while preserving important information.
Batch Processing
Scan multiple pages at once, automatically process and merge into a single PDF file. Support drag-and-drop reordering for flexible page arrangement.
Real-time Preview
Display document detection box in real-time during capture, what you see is what you get. Preview and edit anytime after processing to ensure perfect results.
Multi-Format Support
Supports mainstream image formats like JPG, PNG, WebP with automatic recognition and optimized processing. Supports various PDF page sizes to meet different needs.
High Quality Output
Multiple quality options from high compression to maximum quality. Generated PDF files are clear and readable, suitable for printing and archiving.
How to Use PDF Scanner
Complete document scanning in four simple steps
Capture or Upload
Use camera to capture documents, or select images from gallery to upload. Supports common formats like JPG, PNG.
Auto Processing
System automatically detects document edges and crops, applies smart enhancement filters, and optimizes image quality.
Edit & Adjust
Manually adjust crop area, change filter effects, add or remove pages, and reorder pages as needed.
Export PDF
Set PDF quality and page size, export high-quality PDF file to local storage with one click.
Frequently Asked Questions
Why can't the document edges be automatically detected?
Document edge detection relies on clear boundary contrast. Suggestions: 1) Place the document on a single-color background (e.g., white paper on a dark desktop); 2) Ensure there is enough space around the document, don't shoot too close to edges; 3) Avoid shadows blocking document edges; 4) Keep the camera steady to avoid blurry images; 5) Shoot in well-lit environments. If automatic detection still fails, you can manually adjust the crop area on the edit page.
Why are there large dark shadows after applying filters?
This is usually caused by uneven lighting. Suggestions: 1) Use uniform overhead lighting to avoid shadows from side lighting; 2) Avoid casting shadows from your phone or camera onto the document; 3) Don't shoot in backlit environments; 4) Ensure the document surface is flat to avoid shadows from creases; 5) Try selecting the "Original" filter after shooting to preserve the original photo effect. If lighting conditions cannot be improved, consider using a scanner or reshooting in better lighting.
What is the quality of scanned documents?
Scan quality primarily depends on your camera resolution and photo quality. Setpdf Scanner enhances this with intelligent image processing algorithms, including edge detection, shadow removal, and contrast adjustment to make documents clearer and more readable. For best results, use a high-resolution camera and capture images in well-lit conditions.
Is this PDF scanner free to use?
Setpdf Scanner's core features are completely free to use with no registration required, allowing you to scan documents and export PDFs. Some advanced features require a paid subscription for a more professional document processing experience.
What image formats are supported?
Supports JPG, JPEG, PNG and WebP format images. Maximum 10MB per image. High-resolution images are recommended for best scanning results.
How many pages can I scan at once?
Setpdf Scanner supports multi-page document scanning for everyday document processing needs. The free version handles a reasonable number of pages, while the paid version offers higher page limits and processing priority for users who need to handle large volumes of documents.
What are the advantages of generated PDF files?
Setpdf offers flexible PDF export settings: multiple image quality options (max compression, balanced, high quality), page size selection (A4, A3, Letter, etc.) or auto-fit to image, page orientation (portrait/landscape/auto), margin adjustments, and page numbering. These options let you create the most suitable PDF for different purposes (sharing, printing, archiving).
Which devices and browsers are supported?
Supports all modern browsers including Chrome, Firefox, Safari and Edge. Works on computers, tablets and smartphones. Mobile devices can use the camera to scan directly.
About Setpdf Online PDF Scanner
Setpdf Scanner is a professional online document scanning tool that helps you quickly convert paper documents, receipts, business cards, notes and more into high-quality PDF files. No installation required, complete scanning, editing and exporting directly in your browser.
Smart Document Scanning
Our scanner uses advanced computer vision technology to automatically identify document boundaries with precise detection even in complex backgrounds or tilted angles. Real-time preview lets you see detection results while capturing, ensuring perfect scans every time. Supports direct camera capture or batch upload from gallery, flexibly meeting different usage scenarios.
Professional Image Processing
Built-in professional-grade image processing filters including color enhancement and black & white modes. Color enhancement mode preserves important color information in documents (such as stamps, annotations) while optimizing brightness and contrast to make text clearer. Black & white mode is ideal for pure text documents, minimizing file size. All processing algorithms are carefully optimized to ensure clarity while maintaining natural effects.
Flexible Usage Options
Setpdf Scanner offers multiple usage plans to meet different user needs. Core scanning features are completely free, supporting multi-page document scanning, intelligent edge detection, multiple filter effects, and PDF export settings. The paid version offers higher page processing limits and priority processing speed, suitable for professional users who need to handle large volumes of documents. All versions ensure high-quality scanning results and smooth user experience.
Wide Range of Applications
Setpdf Scanner is suitable for various document scanning needs: business professionals can quickly scan contracts, invoices and receipts; students can scan class notes and lecture materials; personal users can digitally preserve important files, ID documents and family records. Advanced features are especially suitable for professional users who frequently scan documents, completing all pages' scanning and merging in one operation, greatly improving work efficiency.