Adobe Acrobat Pro costs nearly $20 per month — more than most people can justify for occasional PDF editing. The good news: for the most common editing tasks, free online tools are entirely sufficient. This guide explains what 'editing a PDF' actually means and which free tool handles each task.
What 'Editing a PDF' Actually Means
'Edit PDF' means different things to different people. It is important to understand what is actually possible before setting expectations:
Edit Type
Possible Free?
Notes
Add text to a PDF
Yes
Overlay a text box on existing content
Sign a PDF
Yes
Draw, type, or image signature
Highlight / annotate
Yes
Highlight text, add sticky notes
Fill PDF forms
Yes
Click-to-fill interactive fields
Change existing text
Limited
Requires the font to be available and embedded
Delete / rearrange pages
Yes
Use PDF Split and Merge tools
Change layout / design
Very limited
PDFs are not designed for layout editing
Important: editing the underlying text of a PDF (changing what a word says) is extremely difficult without the source file. PDFs are designed for viewing, not editing. For full text editing, convert to Word first (convertfloor.com/tools/pdf-to-word), edit in Word, then save back to PDF.
How to Add Text to a PDF Without Adobe
Open the PDF Editor. Go to convertfloor.com/pdf-editor.
Upload your PDF. Drag and drop or click to browse.
Click the Text tool. Click anywhere on the page to place a text box.
Type your text. Choose font, size, and colour from the toolbar.
Reposition if needed. Drag the text box to exactly where you want it.
Download. The text is embedded into the PDF at the position you placed it.
How to Sign a PDF Without Adobe
Open the PDF Editor. Go to convertfloor.com/pdf-editor.
Upload your PDF.
Click the Signature tool. Three options: draw your signature with your mouse or touch, type your name and choose a signature style, or upload a photo of your signature.
Place the signature. Click the page where the signature should appear. Resize and reposition.
Download the signed PDF.
Is an electronic signature legally valid? In most countries yes — electronic signatures are legally binding under eIDAS (EU), ESIGN Act (US), and similar laws in Australia, UK, and Canada. For very high-value contracts, a witnessed wet signature may still be required. Check the specific requirements of your document.
How to Highlight and Annotate a PDF Without Adobe
Open the PDF Editor. Go to convertfloor.com/pdf-editor.
Upload your PDF.
Use the Highlight tool. Select the highlight colour, then click and drag over text to highlight it.
Add sticky notes. Click the Note tool, click anywhere on the page, and type your annotation.
Underline or strikethrough. Available in the annotation toolbar.
Download. Annotations are embedded in the PDF.
How to Fill Out a PDF Form Without Adobe
PDF forms come in two types:
Interactive forms: have clickable fields you can tab between. Click any field in the PDF Editor to fill it.
Non-interactive forms: look like forms but are actually images or fixed text. Use the Text tool to overlay your information on the form fields.
Open the PDF Editor. Go to convertfloor.com/pdf-editor.
Upload the form PDF.
Click on form fields. For interactive forms, the fields are highlighted. Click and type. For non-interactive, use the Text tool to place text boxes.
Download the completed form.
How to Change Text in a PDF — The Real Way
Directly changing existing text in a PDF (fixing a typo, updating a name, changing a price) is the hardest editing task. Here is the most reliable free approach:
Convert the PDF to Word. Go to convertfloor.com/tools/pdf-to-word. Download the DOCX.
Edit the text in Word or Google Docs. Make all your text changes in the Word document.
Convert back to PDF. Save the edited Word file as a PDF (File → Save As → PDF in Word, or File → Download → PDF in Google Docs).
This round-trip approach is more reliable than trying to edit text directly in a PDF editor, which often produces font mismatches and layout shifts.
Free PDF Editor vs Adobe Acrobat — What You Get
Feature
ConvertFloor (Free)
Adobe Acrobat Pro ($20/mo)
Add text
✓
✓
Sign PDF
✓
✓ (advanced)
Highlight / annotate
✓
✓
Fill forms
✓
✓
Edit existing text
Limited (overlay)
✓ Full editing
Redact text
Limited
✓ Full redaction
Batch editing
No
✓
Send for signature
No
✓ With tracking
Cost
Free
~$20/month
Signup required
No
Yes