Blog · Page 3
Guides and tips for working with PDF files.
How to Make a PDF Searchable (Free OCR, No Upload Needed)
A scanned PDF is just a picture of text, so Ctrl+F finds nothing. Here is how to make a PDF searchable with OCR, for free and without uploading it, plus the settings that decide how accurate the text will be.
Oct 7, 2026 · 6 min read
How to Redact a PDF Properly (Free, No Upload Needed)
A black box is not a redaction. Learn how to redact a PDF so names, numbers and addresses are permanently removed, how to check that nothing leaks, and how to do it free in your browser without uploading the file.
Oct 6, 2026 · 5 min read
How to Merge PDF Files
Merge multiple PDF files into a single document with free online Merge PDF tool. No signup needed, quick, secure and easy. Start combining your documents today.
Jan 12, 2026 · 3 min read
How to Split PDF Files
Split PDF files into individual pages or sections with free Split PDF online tool Quick, secure, no signup needed. Tailor PDFs to your needs. Start now!
Jan 12, 2026 · 3 min read
How to Compress PDF Files
How to compress a PDF file for free: upload it, let the compressor shrink it and download a smaller PDF for email and upload limits. No sign up needed.
Jan 12, 2026 · 2 min read
How to Repair Corrupted PDF Files
Efficiently fix damaged PDFs with WoowPDF's free tool! Quick, secure repairs with no signup needed. Restore your PDFs to pristine condition today.
Jan 12, 2026 · 2 min read
How to Convert PDF to PDF/A
Easily archive PDFs with WoowPDF's PDF to PDF/A converter. Secure, fast, and free. Preserve your documents’ integrity now!
Jan 12, 2026 · 3 min read
How to Encrypt PDF Files
Quickly encrypt PDFs with WoowPDF! Add password protection to secure your documents in seconds. Easy, fast, and safe.
Jan 12, 2026 · 2 min read
How to Unlock PDF Files
Instantly unlock PDF files with WoowPDF! Remove passwords fast and easily, ensuring your documents are accessible. Try Free now.
Jan 12, 2026 · 2 min read
How to Add a Watermark to a PDF
Easily add text or image watermarks to PDFs with WoowPDF. Secure, customize, and download your marked documents instantly.
Jan 12, 2026 · 3 min read
How to Rotate PDF Pages
Quickly rotate PDF pages online free with WoowPDF. Adjust orientation up, down, left, or right effortlessly. Secure and free
Jan 12, 2026 · 2 min read
How to Add Page Numbers to PDF Files
Effortlessly insert page numbers into PDFs with WoowPDF. Customize placement and text for better document navigation. Try now!
Jan 12, 2026 · 3 min read
The WoowPDF blog explains how to get everyday PDF jobs done: converting files to and from PDF, merging and splitting documents, compressing large files for email, protecting and unlocking PDFs, and fixing files that will not open. Each guide walks through the steps with our free online tools, which work with no account and no watermark.