The fastest way depends on what you're starting with

Creating a PDF is usually a one-step process built into whatever program you're already using. If you're working in Microsoft Word, Google Docs, Apple Pages, or most other document editors, you can export or save your file as a PDF without installing anything extra. The menu location changes by program, but the result is the same: a file that looks identical on any device and that most people can open without special software.

The method also depends on whether you're converting a document you've already written, scanning a paper document, or combining multiple files into one PDF. Each route takes a different path, but none of them requires you to learn new software if you already have a document editor open.

Key Takeaways

  • Most document editors have a built-in "Export as PDF" or "Save as PDF" option in the File menu that requires no extra software.
  • Microsoft Word, Google Docs, and Apple Pages all create PDFs the same way: File menu, then choose PDF as your format.
  • If you're scanning a paper document, your scanner software or a phone app like Adobe Scan or Microsoft Lens can convert the image directly to PDF.
  • Combining multiple files into one PDF usually requires a dedicated tool like Adobe Acrobat, Preview on Mac, or a free online converter.
  • The PDF you create will be the same size as your original file unless you compress it, which most programs let you do during export.

Exporting from Word, Google Docs, or Pages

In Microsoft Word, open the document you want to convert. Click File in the top left, then click "Save As" or "Export." Choose PDF from the format dropdown menu. Word will ask you where to save the file and what to name it. Click Save, and you're done. The PDF will appear in the folder you chose.

In Google Docs, click File at the top, then hover over "read." A submenu appears with format options. Click "PDF Document." Your browser will read the PDF to your Downloads folder automatically. You can rename it afterward if you want a different name.

In Apple Pages on Mac or iPad, click File, then "Export To." Choose PDF from the list. Pages will show you options for page size and quality before you save. Click Next, choose where to save the file, name it, and click Save.

All three programs create PDFs that look exactly like the document you see on screen. Fonts, images, page breaks, and formatting all stay the same. The PDF file is usually slightly smaller than the original document file, so it takes up less storage space.

Converting files from other programs

Most programs that create documents — including LibreOffice, Canva, Adobe InDesign, and even presentation software like PowerPoint — have the same File menu option. Look for "Export as PDF," "Save as PDF," or "Print to PDF." The exact wording varies, but the result is identical.

If your program doesn't have a direct PDF option, you can use the Print dialog as a workaround. Open File, click Print, and look for a dropdown menu that says "Printer" or "Print to." Change it to "Save as PDF" or "Print to PDF." This method works in almost any program, even older ones that don't have a dedicated export feature.

Some programs let you choose compression settings before you save. If your PDF will be emailed or uploaded somewhere with a file size limit, look for an option that says "Reduce file size" or "Compress." This makes the PDF smaller but may reduce image quality slightly.

Scanning paper documents into PDF

If you're starting with a paper document, your scanner's software usually has a "Save as PDF" option built in. Place the paper in your scanner, open the scanner software, and look for format or file type settings. Select PDF, then click Scan. The software will create a PDF file and save it to your computer.

If you don't have a scanner, you can use your phone instead. Apps like Adobe Scan, Microsoft Lens, or Google Drive (which has a built-in scanner) let you photograph a document and convert it to PDF automatically. Take a clear photo of each page, and the app will straighten it, remove shadows, and save it as a PDF. You can then email the PDF to yourself or save it to cloud storage.

Scanned PDFs are larger files than document PDFs because they're essentially photographs. If file size matters, look for a compression option in your scanner software or phone app before you save.

Combining multiple files into one PDF

If you need to merge several documents, images, or PDFs into a single file, the method depends on what you're combining and what software you have.

On Mac, open Preview (the built-in image viewer). Click File, then "Open." Select the first PDF or image. Then click File again and "Open" to add more files. Preview will add them as pages in the same document. Click File, then "Export as PDF" to save the combined file.

On Windows, you'll need additional software. Adobe Acrobat (paid) has a "Combine Files" feature. Free alternatives include online tools like Smallpdf or ILovePDF, where you upload multiple files and read the merged PDF. These tools work in any web browser, but they require uploading your files to the internet, which matters if your documents contain private information.

If you're combining Word documents rather than PDFs, it's usually easier to copy and paste the content into one Word document first, then export that single document as a PDF.

Choosing quality and file size settings

When you export a PDF, most programs give you options for how much to compress the file. Higher quality means larger file size; lower quality means smaller file size. For documents that are mostly text, the difference is small. For documents with many images or photographs, the difference can be significant.

If you're printing the PDF or viewing it on screen, choose "High Quality" or "Standard." If you're emailing it or uploading it to a website with size limits, choose "Compressed" or "Reduced File Size." You can always create the PDF again with different settings if the first version doesn't work for your purpose.

Some programs let you set a specific resolution in dots per inch (DPI). For screen viewing, 72 DPI is fine. For printing, use 300 DPI. Most programs default to 150 DPI, which works for both.

Protecting your PDF with a password

If your PDF contains sensitive information, you can password-protect it so only people with the password can open it. In Microsoft Word, click File, then "Info," then "Protect Document," then "Encrypt with Password." Type a password and click OK. When you export the document as a PDF, the password protection carries over.

In Google Docs, you can't password-protect the PDF directly, but you can control who can read it. Click the Share button, set permissions to "Viewer only," and only people you've shared the link with can access it. When they read the PDF, it won't have a password.

If you already have a PDF and want to add password protection, you'll need Adobe Acrobat or a free online tool. Most online tools let you upload a PDF, set a password, and read the protected version.

Frequently Asked Questions

Can I edit a PDF after I create it?

You can edit a PDF in Adobe Acrobat (paid) or free tools like Smallpdf and ILovePDF, but editing is limited compared to editing the original document. It's usually easier to go back to your Word document or Google Doc, make changes there, and export a new PDF. If you only need to add a signature or fill in form fields, most PDF readers can do that.

Why is my PDF file so large?

PDFs with many images or high-resolution photographs are larger than text-only PDFs. When you export, look for compression or quality settings and choose "Reduced File Size" or "Compressed." If the PDF is still too large, you can use an online tool to compress it further after creation.

What's the difference between PDF and other formats like DOCX?

A PDF looks the same on every device and can't be easily edited, which makes it good for sharing final versions. A DOCX file (Word format) can be edited by anyone who opens it, which makes it better for documents people need to change. Use PDF when you want to lock the formatting; use DOCX when you want others to edit it.

Do I need Adobe to create a PDF?

No. Every major document editor — Word, Google Docs, Pages, LibreOffice — can create PDFs without Adobe software. Adobe Acrobat is useful if you need to edit PDFs or combine many files, but it's not required for basic PDF creation.

Can I create a PDF on my phone?

Yes. On iPhone, open any document in an app like Word or Google Docs, tap Share, then look for "Print" or "Save as PDF." On Android, the process is similar: open the document, tap the menu, and look for "Export" or "Save as PDF." Phone apps like Adobe Scan and Microsoft Lens also create PDFs from photos of paper documents.