April 22, 2025 · 8 min read
The 12 Best Free PDF Tools Online in 2025
A practical, no-fluff roundup of the most useful free PDF tools online — what each is for, and when to reach for them.
PDFs are everywhere — contracts, payslips, invoices, school assignments, scanned receipts. But the moment you need to change a PDF, the experience falls apart unless you know which tool to grab. Here are the 12 free online PDF tools that quietly do 90% of what most people will ever need.
1. Merge PDF
The classic. Combine multiple PDFs into one tidy document — perfect for stitching together chapters, receipts, or scanned pages. Try Merge PDF →
2. Split PDF
Pull individual pages or ranges out of a long PDF. Great for sharing only the parts of a report that matter. Split PDF →
3. Compress PDF
Shrink PDFs that are too big to email. Most compressors offer low/medium/high settings — start with medium for the best size-vs-quality balance. Compress PDF →
4. PDF to Word
Convert a PDF into an editable Word document while keeping the formatting. Ideal when you've lost the original .docx file. Open the converter →
5. Word to PDF
Lock down a Word file as a PDF so it looks identical on every device, every time.
6. JPG to PDF
Combine photos or scans into a single PDF — useful for receipts, ID copies, or photo albums.
7. PDF to JPG
Pull each page of a PDF out as a high-quality image — handy for slides, social media, or embedding into other docs.
8. Rotate PDF
Fix that one PDF where every page is sideways because someone scanned it the wrong way up.
9. Protect PDF
Add a password and AES encryption before sending sensitive documents.
10. Unlock PDF
Remove a known password from a PDF you own — perfect for old archives.
11. Sign PDF
Add a legally valid e-signature without printing, signing, scanning and re-uploading.
12. OCR PDF
Make scanned PDFs searchable so you can copy text out of them.
What to look for in a PDF tool
- Privacy: Files should auto-delete and never be used to train models.
- No signup: One-off tasks shouldn't need an account.
- Speed: The whole point is convenience.
- Quality: Output should be lossless wherever possible.
All the tools above are available free at PDFly.
Keep reading
How to Compress a PDF Without Losing Quality
A step-by-step guide to shrinking PDF file size for email, the web or storage — without making your document look terrible.
How to Convert a PDF to Word (and Keep Your Formatting)
A complete guide to converting PDFs into editable Word documents online — including the gotchas around fonts, tables and scanned files.
How to Merge PDF Files Online — A Complete Guide
Step-by-step instructions to combine multiple PDFs into a single file online, plus tips for ordering, bookmarks and file size.