PDF guides
Plain-English how-tos and explainers for everyday PDF tasks — and how doing them in your browser keeps your documents private.
- Are online PDF tools safe? How client-side processing protects your filesServer-side vs client-side PDF tools, what actually happens to your files, and how to check a tool is not uploading them.
- How to reduce a PDF’s file size for email, forms and uploadsWhat makes PDFs heavy, the two ways to compress them, and how to hit a strict size limit without ruining quality.
- How to make a scanned PDF searchable: OCR explainedWhat OCR is, how it adds a searchable text layer to a scan, and how to get accurate results.
- PDF to Markdown: turn documents into clean text for notes, wikis and AIWhy Markdown matters, how a PDF is turned into structured Markdown, and when to check the result.
- How to password-protect a PDF — and safely remove a passwordPDF encryption explained: AES-256, open passwords vs permissions, and doing it without uploading.
- How to merge, split and reorganize PDF pagesCombining, extracting, reordering, rotating and deleting pages — the right tool for each task.
- Converting between images and PDF: JPG/PNG to PDF and backImages to PDF and PDF to images: choosing JPG vs PNG, resolution, page size and use cases.
- Smart vs extreme PDF compression: which to chooseThe trade-off between keeping text selectable and reaching a small size, explained clearly.