Limits shown upfront
Supported formats, file counts and size limits appear beside every upload.
The useful part of your PDF workflow
Free Online PDF Tools
Convert, compress, merge, split, edit and organise PDF files online. No account is required for the available tools.
No registrationClear file limitsNo added watermark
Popular tools
Choose a task and get moving
01Available
Compress PDF
Reduce PDF storage and sharing size with a choice of optimisation levels.
Open tool 02AvailableMerge PDF
Combine several PDF files into one document in the order you choose.
Open tool 03AvailableSplit PDF
Extract selected pages or page ranges into individual PDF files.
Open tool 04AvailablePDF to Word
Turn a text-based PDF into an editable DOCX document.
Open tool 05AvailableWord to PDF
Convert a DOC or DOCX document to PDF using LibreOffice on the server.
Open tool 06AvailableJPG to PDF
Arrange JPG images and combine them into a single PDF.
Open tool 07AvailablePDF to Images
Render selected PDF pages as JPG or PNG images.
Open tool 08AvailablePDF to JPG
Render selected PDF pages as compact JPG images.
Open tool 09AvailablePDF to PNG
Render selected PDF pages as lossless PNG images.
Open tool 010AvailableEdit PDF
Annotate and organise PDF pages in an interactive document workspace.
Open tool 011AvailableOCR PDF
Add an English searchable text layer to scanned PDF pages.
Open tool 012AvailableSign PDF
Place a typed, drawn or uploaded visual signature on a PDF.
Open toolWhy C4Converter
Useful details before you upload.
Focused interfaces
Each canonical page is built around one task, with relevant settings and troubleshooting.
Plain-language privacy
Each tool explains whether it uses memory or a temporary working directory.
How it works
Three clear steps
- ChooseSelect a supported file and check the visible limits.
- ProcessPick settings for the tool and start the job.
- DownloadSave the result or start over with another file.
Helpful PDF guides
Make the result—not just the file.
01
02
03
How to reduce PDF size for email
Email limits apply to the encoded message, not only the number shown beside your PDF.
How to convert a scanned PDF to editable Word
A scan needs OCR before its words can become editable, and both recognition and layout require review.
How to use online PDF tools safely
Match the processing method to the document risk instead of treating every PDF the same.
Common questions
Know what happens to your file
Available tools process only the file needed for your requested output. Read the retention page for differences between in-memory and temporary-disk conversions.
Read the file retention policy →Do I need an account?
No. The available tools in this release do not require registration.
Will C4Converter add a watermark?
The six priority conversion and organisation tools do not add a C4Converter watermark to their output.
Can a conversion change formatting?
Yes. Complex PDF and Word layouts, embedded fonts, tables and scans can require manual review after conversion.