Frequently Asked Questions

Yes! PDF Logic is 100% free with no hidden costs, subscriptions, or premium tiers. All 27 tools are available to everyone at no charge. We don't limit file sizes, add watermarks, or require payment for any features.

No account or registration is required. You can start using any of our tools immediately without providing an email address, creating a password, or sharing any personal information.

We offer 27 professional PDF tools including: Merge PDF, Split PDF, Compress PDF, Edit PDF, Convert PDFs to Word/Excel/PowerPoint/Images, Convert documents to PDF, Sign PDF, Watermark PDF, Rotate PDF, Organize PDF, Protect/Unlock PDF, Redact PDF, OCR PDF, and more.

Yes! All our tools work on smartphones and tablets running iOS or Android. The interface is fully responsive and touch-friendly. You can even install PDF Logic as a Progressive Web App (PWA) for an app-like experience.

Most tools can work offline once the page is loaded, thanks to WebAssembly technology that processes files directly in your browser. However, some advanced features like OCR or large file conversions may require an internet connection to use our edge computing servers.

Your files are completely safe. Most tools process PDFs entirely in your browser using WebAssembly—files never leave your device. For tools requiring server processing, files are processed in memory on our edge network and immediately deleted. We never store, retain, or have access to your documents.

Yes. Since we don't collect, store, or process personal data or your files, we're compliant by design. Your documents never cross borders because they never leave your computer for most operations. This makes us ideal for handling sensitive EU data.

Absolutely. Our architecture is specifically designed for sensitive documents. Local processing means confidential contracts, financial statements, legal documents, and proprietary information remain completely private. Many law firms, healthcare providers, and financial institutions use PDF Logic for this reason.

Yes. Local browser-based processing means Protected Health Information (PHI) never leaves your device, addressing key HIPAA requirements. However, organizations should conduct their own compliance review based on their specific use case and security policies.

PDF Logic is supported by our parent company AppzoTech. We believe in providing value first. In the future, we may introduce optional premium features for enterprise users, but the core tools will always remain free for everyone.

PDF Logic works on all modern browsers including Chrome, Firefox, Safari, and Edge. We recommend using the latest browser version for best performance. WebAssembly support is required, which is available in all browsers from 2017 onwards.

For client-side processing (most tools), the limit is your device's memory—typically you can process files up to several hundred megabytes. For server-side processing, we support files up to 100MB. Very large files may take longer to process depending on your device's capabilities.

There's no artificial limit. You can process dozens or even hundreds of files in batch operations like merging or converting. However, processing very large batches may take longer depending on your device's processing power and available memory.

Processing speed depends on several factors: your device's CPU/RAM, file size and complexity, and the operation being performed. Simple operations like splitting are instant, while complex tasks like OCR on scanned documents take longer. Using a modern device and closing unnecessary browser tabs can improve performance.

WebAssembly (Wasm) is a technology that brings near-native performance to web applications. It allows us to run complex PDF processing directly in your browser at speeds comparable to desktop software, without the need for file uploads or installations.

No. Our merge tool preserves 100% of the original quality, formatting, fonts, images, and resolution. The merged document looks exactly like the source files. Bookmarks and metadata within individual PDFs are also maintained.

Yes! Our compression tool uses intelligent algorithms to reduce file size while maintaining visual quality. We offer different compression levels: high quality (minimal compression, best appearance), balanced (good size reduction with excellent quality), and maximum (aggressive compression for smallest files). Choose based on your needs.

Our converter maintains formatting, fonts, images, tables, and text with high accuracy. However, conversion quality depends on how the original PDF was created. PDFs created from Word convert nearly perfectly, while scanned PDFs or complex layouts may require manual adjustment after conversion.

Scanned PDFs are images, not text. First use our OCR tool to recognize and extract text from the scanned document, making it searchable and editable. Then you can use the Edit PDF tool or convert to Word for more extensive editing.

Electronic signatures are simple image-based signatures you can add using our Sign PDF tool—perfect for most documents. Digital signatures use cryptographic methods to verify identity and detect tampering—required for legally binding contracts in some jurisdictions. Our tool supports electronic signatures; for certificate-based digital signatures, you'll need specialized software.

Yes, using our Unlock PDF tool—but only if you know the password. Enter the password to remove protection. We cannot crack or bypass passwords on documents you don't have permission to unlock, as this would be unethical and potentially illegal.

Deleting content might leave traces in the PDF structure. Proper redaction permanently removes sensitive information from the file, ensuring it cannot be recovered. Our Redact PDF tool completely eliminates selected content, not just hides it with black boxes.

Yes. Many law firms use PDF Logic for document assembly, redaction, and PDF/A conversion for archival. The local processing ensures attorney-client privilege is protected. For legally binding signatures, verify what type of signature is required in your jurisdiction.

Absolutely! Students use PDF Logic to merge notes, compress assignments for submission, convert papers between formats, and organize research materials. Educators create lesson materials, compile reading lists, and prepare exam documents. It's free, which is perfect for academic budgets.

Yes. From solo entrepreneurs to Fortune 500 companies, businesses use PDF Logic for proposals, contracts, invoices, reports, and more. The privacy-first architecture meets most corporate security requirements. For enterprise features like central billing or usage analytics, contact us about custom solutions.

Adobe Acrobat is powerful desktop software requiring installation and a subscription ($15-20/month). PDF Logic is free, web-based, requires no installation, and processes most files locally for better privacy. Acrobat has more advanced features for professional design work, while PDF Logic excels at common tasks everyone needs.

Most online tools upload your files to their servers, creating privacy risks. They often have file size limits, daily usage limits, watermarks, or require paid subscriptions. PDF Logic processes locally when possible, has no limits or watermarks, and is completely free. We prioritize privacy and speed over collecting your data.

Not currently, but we're exploring API options for developers and businesses who want to integrate PDF processing into their applications. If you're interested, contact us to discuss your requirements and be notified when an API becomes available.

First, try refreshing the page and attempting again. Ensure you're using a modern browser (Chrome, Firefox, Safari, or Edge updated within the last 2 years). Clear your browser cache and cookies. If problems persist, try a different browser or device. Contact us with details about your browser, operating system, and the specific issue.

Processing very large files or many files simultaneously can consume significant memory. Close unnecessary browser tabs and applications. If working with huge PDFs (>100MB), try processing smaller batches or using a device with more RAM. Consider compressing files before other operations.

Format conversion can't always be perfect due to differences between file formats. Factors affecting conversion include embedded fonts (some fonts can't be extracted), complex layouts (multi-column designs may shift), scanned content (images can't be converted to editable text without OCR), and proprietary formatting (some PDF features don't exist in other formats).

Check that your browser isn't blocking downloads (look for a notification in the address bar). Ensure you have sufficient storage space on your device. Try a different browser. Check if a firewall or antivirus is blocking the download. If the file doesn't download, try processing it again—there may have been a temporary issue.