How to Open, Edit, or Convert a PDF for Free
You do not need paid software to open, fill in, or even edit a PDF. Here are the free tools built into Windows and trusted browser-based options.
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PDFs are the most common document format for forms, manuals, and official documents. Here is how to work with them at no cost.
Opening a PDF
Windows 10 and 11 include Microsoft Edge as the default PDF viewer. Simply double-click a PDF file and it will open in Edge. You can zoom, search, rotate, and print from there. If you prefer a dedicated viewer, Adobe Acrobat Reader (the free version) is the most widely used alternative.
Filling in PDF forms
Many official forms are PDFs with fillable fields. Both Microsoft Edge and Adobe Acrobat Reader let you click into form fields and type directly. To save a filled form in Edge, press Ctrl + P to 'print' and choose 'Save as PDF' as the printer.
Editing PDF text (free options)
True PDF editing — changing existing text, adding images — is tricky with free tools, but here are your best options:
- LibreOffice Draw (free, open-source): Can open and edit many PDFs. Install LibreOffice from libreoffice.org, right-click the PDF, and open it with LibreOffice Draw.
- Microsoft Word: Word can open a PDF and convert it to an editable document. Right-click the PDF, choose 'Open with', then 'Word'. Formatting may shift on complex documents, but plain text PDFs convert well.
Converting a PDF to Word or other formats
If you have Microsoft 365, Word handles this natively as described above. For a free web-based option, Smallpdf and ILovePDF both offer PDF-to-Word conversion with no software to install. Be mindful of privacy — do not upload confidential or sensitive documents to online tools.
Combining or splitting PDFs
The same web tools offer merging and splitting. For offline use, PDF24 Creator is a free desktop application with no usage limits.
Not sure which tool fits your situation? Ask us.
Frequently asked questions
My PDF opens but all the text appears as boxes or symbols. What is wrong?
The PDF uses embedded fonts that your viewer cannot render. Try opening it in Adobe Acrobat Reader, which has the broadest font support. If it still looks wrong, the file may be corrupted or created with a specialist tool — contact whoever sent it and ask for a different format or a re-exported version.
Can I sign a PDF for free?
Yes. Adobe Acrobat Reader (free) allows you to add a typed or drawn signature using the 'Fill and Sign' tool. Microsoft Edge also has a basic drawing tool (the pen icon in the toolbar) that lets you draw a signature on a PDF and save it.
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