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PDF guides

Long-form guides on working with PDF files: what happens inside them, which settings to pick, and how to avoid common mistakes.

Privacy & securityHow to Check a PDF for Viruses and Malware (Without Installing Anything)PDFs are the most common malicious email attachment. Learn what hides inside a hostile PDF and check any file in your browser before opening it. 10 min read

How-toHow to Save a Web Page as a PDF (the Whole Page, Not a Screenshot)Browser print cuts off lazy-loaded content and breaks layouts. Here is how full-page web-to-PDF capture works and when to pick PDF or PNG. 9 min read

How-toHow to Sign a PDF Without Printing It: Draw, Type or Upload a SignatureA step-by-step guide to signing a PDF in your browser: draw, type or upload a signature, place it on any page, then flatten and lock the signed file before you send it. 14 min read

How-toSeven PDF Jobs You Didn't Know Your Browser Could DoExtract images, real redaction, page resizing, OCR, tables to CSV, security scanning and sanitizing: seven browser PDF jobs that take under a minute. 9 min read

Privacy & securityWhy Use a Temporary Email Address (and When Not To)Disposable inboxes keep spam, trackers and breach exposure away from your real address. Here is what a temporary email is good at, where it fails, and how TempX works. 4 min read

PDF basicsBrowser PDF Tools vs Desktop Software vs Upload Websites: Which Should You Use?Compare in-browser PDF tools, upload websites and desktop editors like Acrobat on privacy, cost, features, speed and offline use, with advice for each kind of user. 9 min read

Privacy & securityCompress Confidential PDFs Without Uploading: Sensitive Documents Processed in Your BrowserPayslips, contracts and medical reports are often too large to send. Shrink them without the file ever leaving your device. 10 min read

How-toWriting Documents in Markdown and Turning Them Into PDFsLearn the Markdown you need in ten minutes, why plain-text writing is faster for notes and reports, and how to turn a .md file into a clean, shareable PDF. 9 min read

Printing & scanningHow to Prepare a PDF for Printing: Page Size, Margins, Color and MoreAvoid cut-off text, wrong page sizes and surprise colour charges. A practical checklist for printing PDFs at home, at the office and at a print shop. 9 min read

Privacy & securityHidden Data in PDFs: What Your Files Reveal and How to Remove ItAuthor names, software, edit history, comments, attachments and text under black boxes: what PDFs leak, real examples, and how to clean a file before you share it. 9 min read

Office & workHow to Prepare Job Application Documents as PDF: CV, Cover Letter and CertificatesExport your CV and cover letter cleanly, scan certificates, combine them in order, fit upload limits, name files properly and avoid mistakes recruiters notice. 9 min read

Office & workPDF Too Large? File Size Limits for Email and Upload Portals, and How to Fit ThemCommon attachment and upload limits for Gmail, Outlook, job sites and government portals, why the real limit is smaller than it looks, and how to get any PDF under it. 9 min read

Printing & scanningHow to Scan Documents With Your Phone and Turn Them Into a Clean PDFGet scanner-quality PDFs from phone photos: lighting, angles, built-in scanner apps, combining pages, fixing rotation and keeping file size down. 9 min read

Office & workHow to Fill, Sign and Flatten PDF Forms So Your Answers Stay PutFill interactive and non-interactive PDF forms, avoid the blank-printout problem, sign them, and flatten them so answers can't be lost or changed. 9 min read

How-toPDF to Word: How to Convert a PDF Into an Editable DocumentHow PDF to Word conversion works, which PDFs convert cleanly, how to fix the common problems, and when to use PDF to Text or OCR instead. 9 min read

Office & workPDF Watermarks: When to Use Them and How to Make One That WorksDraft labels, confidentiality marks, logos and personalised watermarks: what each is for, how to design a readable watermark, and what watermarks can't protect. 9 min read

Privacy & securityHow to Password Protect a PDF (and Choose a Password That Holds)Encrypt a PDF with AES-256, set print and copy permissions, share the password safely, and understand what PDF protection can and can't stop. 9 min read

Office & workHow to Organize a Long PDF: Reorder, Number, Split and Clean It UpA practical workflow for long PDFs such as reports, theses, scans and tenders: fix the order, remove blanks, number pages, add metadata and split for sharing. 9 min read

Office & workElectronic Signature vs Digital Signature: What's the Difference?What an electronic signature is, what a certificate-based digital signature adds, which one the law requires for which documents, and how to sign a PDF properly. 9 min read

Office & workHow to Compare Two Versions of a Contract or PDF and Spot Every ChangeFind what changed between two PDF versions of a contract, policy or report: word-level comparison, reading results, common traps and a review routine for negotiations. 9 min read

Privacy & securityIs It Safe to Upload PDFs to Online Tools? What Happens to Your FilesWhat really happens when you upload a PDF to a free online converter, the risks for sensitive documents, and how to process files without uploading them. 9 min read

PDF basicsHow PDF Files Work: What's Inside a PDF and Why It MattersA plain-language tour of the PDF format: pages, fonts, images, text, forms and metadata. Knowing the structure explains why PDFs behave the way they do. 9 min read

How-toHow to Convert PDF to JPG or PNG: Resolution, Format and Quality ExplainedTurn PDF pages into images for social media, slides, websites and chat. Which format to pick, what DPI means, and how to get sharp text in every image. 9 min read

How-toHow to Compress a PDF Without Losing QualityWhy some PDFs are huge, what compression changes inside the file, and how to pick settings that shrink the size while keeping text sharp and photos clear. 9 min read

PDF basicsPDF vs Word vs JPG: Which File Format Should You Send?When to send a PDF, a Word document or an image. Compare editing, layout, size, security and compatibility, with a quick guide for common situations. 9 min read

How-toHow to Merge and Split PDF Files: A Complete GuideCombine several PDFs into one, break a long PDF into parts, and pull out single pages. Step-by-step methods, page-range syntax and fixes for common problems. 11 min read