Best free PDF tools, and how to choose one

What makes a PDF tool good

• Your file stays private. Tools that run in your browser never upload your file. Tools that run on a server keep a copy, at least for a while.
• No account for everyday jobs. Merging two files should not need a password.
• No watermark, no page ransom. The finished file should be yours, complete and clean.
• Fast on a phone. Most PDF jobs start on a phone, in a hurry.
• Honest limits. A good tool says what it cannot do, in plain words.

Our picks, job by job

Merging and organizing: Merge PDF, Organize PDF, and Extract Pages cover the daily paperwork shuffle.

Scans and photos: Image to PDF takes single images, batches, and whole folders, which is the fastest way to turn a folder of scanned pages into one document.

Sharing and school or office work: PDF to JPG and PDF to PNG turn pages into pictures that paste anywhere.

Privacy cleanup: the Metadata Scrubber shows the hidden details inside a PDF, like author and creating app, and makes a clean copy without them.

Notes, docs, and AI tools: PDF to Markdown and PDF to JSON turn locked up text into something your other tools can read, search, and quote.

Other good options: large catalog sites like iLovePDF and Smallpdf offer many more specialized tools, and browser based tools like iSpeedPDF share the same privacy first idea. If a job is unusual, like editing the words inside a scanned page, one of those may fit better. For everyday jobs, the private, no login option usually wins on speed alone.