Guides, tips and comparisons on processing PDFs, images, audio and video.
Ways to password-protect a PDF compared: online encryption tool, desktop software, and doing it manually. Which one makes sense in which scenario, and how does AES-256 encryption work.
6 min read
How-ToStep-by-step instructions for password-protecting your PDF with AES-256 encryption. A comprehensive guide with practical tips and common mistakes.
6 min read
GuideHow is AES-256 encryption applied to a PDF, when is it needed, and what happens to your file during encryption? A comprehensive guide.
6 min read
ComparisonWe compared manual solutions, desktop software, and online tools for unlocking a PDF protected with a password you already know. Here's when each option actually makes sense.
5 min read
GuideA guide to safely removing the password from PDFs whose password you already know. Covers WASM-based in-browser processing, how it differs from server-based methods, and what to know about privacy.
6 min read
ComparisonWhich approach makes more sense when you need to reorder or delete PDF pages? An unbiased comparison of the page-organizing tool against alternative solutions.
6 min read
How-ToA practical, step-by-step guide to reordering, deleting, and rearranging PDF pages.
5 min read
How-ToA step-by-step guide to adding page numbers to PDF files, including position, format, and starting-number options, plus common mistakes to avoid.
6 min read
GuideA comprehensive guide to the technical details behind adding page numbers to PDFs, position/format options, when you actually need it, and what happens to your file's security.
7 min read
ComparisonAn unbiased guide comparing when adding page numbers to a PDF is necessary, and which method — desktop software, an office program, or an online tool — makes more sense in which scenario.
6 min read
GuideWhy does rotating PDF pages by 90, 180, or 270 degrees become necessary, how does the online tool work, and is your file safe? A detailed guide.
6 min read
How-ToHow do you rotate PDF pages by 90, 180, or 270 degrees? A step-by-step online method for fixing sideways-scanned documents.
6 min read
ComparisonWe compared online tools, desktop software, and manual methods for rotating PDF pages. Here's which one makes more sense in which scenario, with examples.
7 min read
How-ToA step-by-step guide to actually removing sensitive information from a PDF. Explains the difference between a visual box and true removal, and the correct method to use.
6 min read
ComparisonThe difference between a visual box and real content deletion in PDF redaction, and which method is right for which situation.
6 min read
GuideMost PDF redaction tools just draw a black box; the actual text stays hidden inside the file. We explain why the rasterize-flatten method is essential for genuinely deleting content.
5 min read
How-ToHow do you sign a PDF document with an electronic signature? Drawing-based signature creation, the multi-signer process, and what to watch out for, explained step by step.
5 min read
How-ToHow do you split a PDF into page ranges or individual pages? A step-by-step guide with practical tips and common mistakes.
6 min read
How-ToLearn how to trim excess white margins from PDF pages step by step. Content is never deleted — only the visible area is reduced.
5 min read
GuideA guide to the tool for cropping unnecessary margins in PDF pages without content loss — its method, use cases, and approach to privacy.
5 min read
ComparisonA comparison of online tools, desktop software, and print settings for cropping blank margins in PDF pages; which one suits which scenario.
6 min read
How-ToA step-by-step guide to finding text and visual differences between two PDFs page by page and downloading the result as a ZIP report.
6 min read
GuideExplains how the PDF Compare tool finds differences between two PDFs page by page, at both the visual and text level, when it's useful, and its approach to privacy.
5 min read
ComparisonComparing PDF signing methods: handwritten signatures, desktop software, and online tools. An unbiased guide to which method makes sense in which scenario.
5 min read