PDF tips & how-to guides
Clear, practical guides for getting things done with PDFs — from compressing and merging to signing and chatting with your documents using AI.
How to Summarize a PDF With AI
Get the key points of a long PDF in seconds. How AI summarization works, what it's great for, and how to get a summary you can actually trust.
How to Translate a PDF (and Keep the Layout)
Translate a PDF into another language with AI while keeping the original layout — or as clean reflowed text. What translates well and how to do it fast.
How to Add Page Numbers to a PDF
Add clean, professional page numbers to any PDF — choose the position, format and starting number, including book-style facing pages. No software needed.
How to Remove a Password From a PDF
Unlock a password-protected PDF you have the password for, so you can open it without typing the password every time. Quick, safe, and no software.
How to Rotate PDF Pages (and Save It)
Fix sideways or upside-down PDF scans permanently. How to rotate one page or all of them and save the change so it sticks when you reopen the file.
How to Split a PDF Into Separate Files
Extract pages or break a big PDF into smaller files — by range, fixed chunks, or file size. The fast way to split a PDF without desktop software.
How to Chat With a PDF Using AI
Ask a long PDF questions and get answers with cited pages. How AI PDF chat works, what it's great at, and how to trust the answers it gives you.
How to Password-Protect a PDF
Add a password and 256-bit encryption to a PDF so only the right people can open it. When to protect a file, and how strong PDF encryption really is.
How to Sign a PDF Electronically (Legally)
Add a legally valid electronic signature to a PDF in minutes. How e-signatures work, whether they hold up, and how to sign without printing.
How to Convert PDF to Word (Keeping Formatting)
Turn a PDF into an editable Word document without wrecking the layout. What converts well, what doesn't, and how to get the cleanest result.
How to Merge PDF Files Into One Document
Combine multiple PDFs into a single file in the right order — the fast, free way to merge contracts, invoices and scans without desktop software.
How to Compress a PDF Without Losing Quality
Learn how to shrink a PDF's file size while keeping text sharp and images clear — what actually makes PDFs large, and the right compression level to pick.