Best Free Online PDF Tools in 2026

The PDF tasks people actually need

Most people need the same handful of PDF operations repeatedly: compress a file before emailing it, convert a PDF to an editable document, merge several files together, or extract specific pages. This guide covers those core tasks with the right tool for each.

Compress PDF — for sharing and email

The most-used PDF tool. When a PDF is too large to email or upload, compression reduces the file size without changing the layout or content.

Best for: reducing PDFs before emailing, sharing via messaging apps, uploading to online forms with file size limits.

What to expect: 40–80% file size reduction for image-heavy PDFs. Text-only PDFs compress less but are usually already small.

Merge PDF — combining multiple files

Takes several PDF files and produces one combined document. Pages appear in the order you set.

Best for: combining scanned document pages, merging invoice batches, creating single-document presentations of multiple reports.

Key tip: arrange files in the correct order before merging — it is easier than splitting and re-merging afterwards.

Split PDF — extracting specific pages

The opposite of merging. Takes a single PDF and produces multiple files — either by page range or as individual pages.

Best for: sharing specific chapters without the full document, extracting one page from a large PDF, splitting a scanned multi-document file into separate documents.

PDF to Word — making PDFs editable

Converts a PDF document into an editable Word (.docx) file. Most useful for text-heavy documents where you need to change content.

Best for: editing contracts, updating reports, reusing content from PDFs in new documents.

Important limitation: works best on PDFs created from Word or other document software. Scanned PDFs are images and require OCR before conversion.

PDF OCR — making scanned PDFs searchable

OCR (Optical Character Recognition) reads the text in scanned images and makes it selectable, searchable, and copyable. Before OCR, a scanned PDF is just a picture of a page.

Best for: making old scanned documents searchable, extracting text from scanned contracts or forms, archiving documents in a searchable format.

Unlock PDF — removing password restrictions

Removes password protection from PDF files you have permission to access. You need the current password to unlock the file.

Best for: removing read or print restrictions from your own documents, unlocking PDFs you have the password for but want to use freely.

Which tool to use when

| Situation | Tool | |-----------|------| | File is too large to email | Compress PDF | | Need to combine several PDFs | Merge PDF | | Need specific pages from a PDF | Split PDF | | Need to edit the text in a PDF | PDF to Word | | Can not select or copy text from PDF | PDF OCR | | PDF has a password you know | Unlock PDF |