PDF Guides

Yes, a PDF can carry a virus — usually through embedded scripts, malicious links, or exploited viewer vulnerabilities, not through the PDF's static content alone.

Cite a PDF the same way you'd cite its underlying source — a report, ebook, or webpage — just add the file format and, if there's no live URL, note where you accessed it.

Draw freehand on any PDF for free using Preview's pen tool on Mac, the Draw button in Microsoft Edge on Windows, or Markup on iPhone and iPad — no extra app needed.

Find every occurrence of a keyword in a PDF for free using Ctrl+F with 'Highlight All' — or search several keywords in sequence to scan a long document quickly.

Loop a PowerPoint presentation so it plays on repeat without anyone clicking — set it up in seconds with Slide Show → Set Up Slide Show → Loop continuously until Esc.

Save any iPhone note as a PDF for free — open it in Notes, tap Share, and choose Save to Files as PDF. No extra app needed, and it works for scanned notes too.

JPEG compresses photos into smaller files with some quality loss; PNG keeps every pixel exact and supports transparency but produces larger files. Here's when to use each.

A letterhead is the printed or digital heading at the top of a business document that shows a company's name, logo, and contact details — here's what it includes and why it matters.

PDF/A is a restricted version of PDF designed for long-term digital archiving — it locks in fonts, colors, and layout so the document looks identical decades from now.

Combine images into one PDF for free using Preview on Mac (select all, then Print → Save as PDF) or the Print to PDF dialog on Windows. Works with any number of photos.

Edit a PDF on iPad for free using the built-in Markup tool — open any PDF in Files, tap the pencil icon, and add text, drawings, or signatures directly. No app to install.

Zip a PDF for free on Mac by right-clicking the file and choosing Compress — Windows has the same built-in option under Send to → Compressed folder. No install needed.

Convert a Word document to PDF for free using File → Save As → PDF in Microsoft Word, or upload to Google Docs and download as PDF. Works on Mac, Windows, and phones.

Convert an email to PDF for free using your browser's built-in Print to PDF — works in Gmail, Outlook, and any webmail without installing anything.

Convert a PDF to CSV for free by copying the table into Google Sheets, which auto-splits it into columns. Free online tools also extract PDF tables directly to CSV.

Add clickable hyperlinks to any PDF for free — Preview on Mac inserts URL links directly, LibreOffice handles complex link types, and free online tools work without any install.

Attach a PDF to an email for free — click the paperclip icon in Gmail or Outlook and select your PDF file. On iPhone, use the Share button in Files and tap Mail.

Bookmark a PDF for free in Preview on Mac with View → Bookmarks → Add Bookmark. In Apple Books on iPhone, tap the bookmark ribbon icon. Both are built-in and free.

Convert a PDF to EPUB for free using Calibre — the best free tool for the job. Works on Mac, Windows, and Linux. Produces a reflowable EPUB readable on any e-reader.

Convert any PowerPoint file to PDF for free — File → Save As → PDF in PowerPoint, or export from Google Slides and LibreOffice Impress. Works on Windows, Mac, and iPhone.

Copy a PDF for free — duplicate the file in Finder or File Explorer with Cmd+D (Mac) or Ctrl+C then Ctrl+V (Windows). Copy pages between PDFs by dragging thumbnails in Preview.

Make a PDF black and white for free on Mac using Preview's Gray Tone Quartz filter. On Windows or any platform, Ghostscript converts a color PDF to grayscale in one command.

Open any PDF on Android for free — Chrome handles PDFs from the web instantly, and the Files app opens local PDFs with the built-in viewer. No downloads needed.

Protect a PDF from editing for free by flattening it in Preview on Mac (File → Export as PDF) or by setting a permissions password. Flattening is the most reliable free method.

Read any PDF on Kindle for free — email it to your Send-to-Kindle address or transfer via USB. Modern Kindles open PDFs natively; convert to EPUB for a better reading experience.

Reduce PDF size on iPhone for free using the built-in Share → Print → pinch-out trick, which resamples images and compresses the PDF. No apps or computer needed.

Resize a PDF for free on Mac using Preview's Print dialog — set a custom page size and scale the content to fit. Works for A4 to Letter conversion and any custom dimensions.

Link to a PDF for free by uploading it to Google Drive and copying the shareable link. Anyone with the link can view the PDF in their browser — no download required.

Save any PDF on iPhone for free using the built-in Files app — tap Share, then Save to Files. Works for PDFs from Safari, Mail, Messages, WhatsApp, and any other app.

View any PDF on iPhone for free — tap a PDF in Files or Safari and it opens instantly in the built-in viewer. Pinch to zoom, swipe to scroll, and search with the Find tool.

Highlight text, add sticky notes, draw, and comment on any PDF for free. Built-in tools on every major platform — no Adobe subscription required.

Add page numbers to any PDF for free — in the header or footer, any position, any format. LibreOffice, Ghostscript, and online tools all work without an Adobe subscription.

Convert any PDF to an editable Google Doc for free — upload to Google Drive, right-click, and open with Google Docs. Works for text PDFs and scanned documents.

Turn a PDF into an editable PowerPoint presentation for free — using Microsoft PowerPoint's built-in import, LibreOffice Impress, or a free online converter.

Create a PDF on iPhone for free using the built-in Share → Print → pinch-out method. Works for webpages, photos, notes, emails, and any document in the Files app.

Convert any PDF page to a JPG image for free — Preview on Mac, Edge on Windows, and free online tools all work without an Adobe subscription.

Remove unwanted pages from any PDF in seconds — using Preview on Mac, Edge on Windows, or the Files app on iPhone. No paid software needed.

Fill out any PDF form for free — Preview on Mac handles interactive forms natively, Edge fills PDF fields on Windows, and Chrome works on any platform without any install.

Highlight text in any PDF for free — built-in tools on Mac, Windows, and iPhone let you mark up documents without Adobe Acrobat or any subscription.

Insert a PDF into Word as an embedded file icon, as an image of the first page, or convert its text into editable Word content — all methods are free and built into Microsoft Word.

Make any PDF smaller for free — Preview on Mac reduces file size in one export step, and Ghostscript handles large files on any platform with full control over compression.

Run OCR on a scanned PDF to extract searchable text — free methods using Preview on Mac, Google Drive online, and Tesseract on the command line. No Adobe needed.

Open any PDF in Microsoft Word and edit it as a .docx — built into Word 2013 and later. No add-ins needed. Also works free with LibreOffice Writer.

Print to PDF for free using built-in OS tools — no software needed. Save webpages, Word docs, emails, and any printable content as a PDF in seconds.

Rotate a single page or every page in a PDF permanently — free methods for Mac, Windows, iPhone, and browser. No Adobe subscription needed.

Save any PDF for free — download from a browser with one click, use Ctrl+S in your PDF viewer, or save a filled form with File → Save. Works on any device.

Share any PDF for free — attach to email, generate a Google Drive link, or use AirDrop on iPhone. All methods work without a subscription or special software.

Sign any PDF for free — Preview on Mac draws or types a signature in seconds, Edge and Acrobat Reader handle Windows, and the Files app covers iPhone.

Unlock a PDF for free by removing the password or printing restrictions — Preview on Mac does it in one step, and Google Drive works for any platform without software.

Add a text or image watermark to any PDF for free — 'Confidential', 'Draft', or your logo — using Preview, LibreOffice, or Ghostscript. No Adobe subscription needed.

PDF stands for Portable Document Format. It preserves layout, fonts, and images across every device and OS — so what you see is exactly what the recipient gets.

Free methods to sign a PDF digitally — draw your signature, type it, or upload an image of it. Works on Mac, Windows, iPhone, and in the browser.

Insert a photo, logo, or screenshot into any PDF page for free — using Preview on Mac, Edge on Windows, Markup on iPhone, or a free desktop app.

Turn any photo or image into a PDF on iPhone for free — using built-in iOS tools. No third-party app or subscription required.

Copy text from any PDF for free — select and copy in any viewer, extract from scanned PDFs with AI, or unlock copy-restricted files.

Free methods to crop a PDF page to any size — remove borders, trim margins, or cut down to a specific area. Works on Mac, Windows, and iPhone.

Turn any PDF page into a PNG image for free — using Preview on Mac, built-in Windows tools, or a free command-line tool. Each page becomes a separate image file.

Free methods to pull specific pages out of a PDF into a new file — using Preview on Mac, browsers on Windows, and built-in tools on iPhone.

Extract all text from a PDF for free — using copy-paste, built-in tools, or AI for scanned documents. No subscription needed.

Create a PDF for free from any file or app — using built-in tools on Mac, Windows, and iPhone. No subscription, no watermark, no software to install.

Print a PDF from any device without extra software — Mac, Windows, iPhone, or Android. Includes fixes for the most common printing problems.

Permanently remove sensitive text from a PDF for free using LibreOffice, Ghostscript, or a free online redaction tool. Avoid common mistakes that leave data exposed.

Search any PDF for text in seconds — using Ctrl+F in your browser or viewer, advanced Find options on Mac and Windows, and workarounds for scanned PDFs.

Five free ways to compress a PDF and reduce its file size — built-in OS tools, command line, and browser-based options — without sacrificing readability.

Free ways to edit a PDF on any device: type on it, change text, add images, fill forms, and annotate — no paid software required.

Flattening a PDF merges all editable layers — form fields, comments, signatures — into one fixed image. Free methods for every platform, no software required.

Turn any PDF into a fillable form for free — add text fields, checkboxes, and signature fields using built-in tools or a free desktop app. Step-by-step guide.

Free methods to add a password to any PDF — using built-in tools on Mac, Windows, and iPhone. Protect your documents before sharing in minutes.

If you know the password, removing it from a PDF takes two minutes. Free methods for Mac, Windows, iPhone, and browser — no extra software needed.

Free methods to type text directly on a PDF file — using built-in tools on Mac, Windows, and iPhone, or a browser. No Adobe Acrobat subscription needed.