Compare PDFs
See the text of two documents side by side.
PDF Viewer
A fast online PDF viewer with thumbnails, zoom, text search and selection, clickable links, rotation, dark mode and full screen.
Choose a file to get started. It is processed on your device and never uploaded.
What you can do
- Opens large documents fast, rendering pages as you scroll
- Search the text and jump between highlighted matches
- Select and copy text, and click links inside the document
- Page thumbnails, zoom, fit to width or page, and rotation
- Dark reading mode, full screen, print and download
- Password-protected PDFs open once you enter the password
How to use PDF Viewer
- Choose a PDF, or drag it onto the page.
- Read it straight away: scroll, zoom, or jump to a page from the thumbnails.
- Search with Ctrl+F, print with Ctrl+P, or open it in the editor to make changes.
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Merge a CV, cover letter and certificates into one file.
More free PDF tools
PDF to PowerPoint
Turn PDF pages into slides with whole-paragraph text boxes, real lists and native tables.
PDF to Word
Turn a PDF into a Word document that edits like one written in Word.
PDF to Excel
Turn the tables in a PDF into a clean Excel workbook with real numbers and dates.
PowerPoint to PDF
Turn presentation slides into a PDF with selectable text.
PowerPoint to Word
Export slide text, tables, pictures and notes to an editable Word document.
PowerPoint to Excel
Extract slide text and tables into an editable Excel workbook.
Edit PDF
Edit PDFs like a Word document: text, tables, images, links and comments.
Sign PDF
Draw, type or upload your signature and place it anywhere.
Fill & sign a form
Fill in an existing PDF form, add your own fields, and sign it.
Organise pages
Reorder, rotate, duplicate and delete pages visually.
Merge PDFs
Combine several PDFs into one document.
Alternate & mix
Interleave the pages of two PDFs, such as front and back scans.
Split PDF
Break a PDF into separate files, by page or by range.
Rotate pages
Turn pages a quarter, half or three-quarter turn.
Remove pages
Delete the pages you no longer need.
Extract pages
Pull selected pages into a new document.
Sort pages
Reverse the page order or set your own.
Pages per sheet
Print several pages on a single sheet.
Annotate PDF
Comment, highlight and mark up a document.
Add watermark
Stamp text across every page.
Add page numbers
Number the pages, in the corner of your choosing.
Add header & footer
Put text, dates and page numbers at the top and bottom of every page.
Crop PDF
Trim the margins of every page.
Flatten PDF
Bake form fields and annotations into the page.
Edit metadata
Change the title, author and subject.
Fix PDF layout
One click to turn pages upright, straighten scans, drop blank pages and even out sizes and margins.
Redesign PDF
Give any PDF a clean, professional design in one click.
Change page size
Resize pages to A4, Letter or Legal, scaling the content to fit.
Overlay PDFs
Stamp one PDF on top of another.
Images to PDF
Turn photos and scans into a single PDF.
Text to PDF
Turn .txt notes and Markdown files into a clean, paginated PDF.
PDF to images
Save every page as a JPEG or PNG.
Extract images
Save the artwork on each page as a PNG.
OCR PDF
Turn scanned PDFs into searchable — or fully editable — documents.
Extract text
Pull the text layer out as a plain text file.
Redact PDF
Black out sensitive passages — and remove them for good.
Password-protect
Require a password to open the document.
Remove password
Strip the password from a document you can already open.
Remove metadata
Clear the hidden author, software and date fields.
Compress PDF
Make the file smaller, with the trade-off you choose.
Optimise for the web
Restructure the file so it opens faster in a browser.
Repair PDF
Fix a damaged or corrupt PDF that will not open properly.
Flatten to images
Convert every page to a picture, removing all live content.
PDF Viewer: questions and answers
Do I need to install a PDF reader?
No. The viewer runs in any modern browser on Windows, Mac, Linux, Android, iPhone and iPad.
Can I search inside the PDF?
Yes. Press Ctrl+F or the search button to find words across every page, with each match highlighted. Scanned documents need OCR first to make their text searchable.
Are my files uploaded?
No. pdf-m8 processes documents in your browser, on your own device. Files are never sent to a server, so confidential documents stay private.