About FlowPDF
FlowPDF is a free collection of practical PDF tools designed around a simple principle: common document work should not require sending the document to an unfamiliar processing server.
What FlowPDF provides
The website brings editing, signing, merging, splitting, compression, conversion, organization and security tools into one browser-based workspace. Users choose the task first, attach a file only when needed and download the result directly.
Why browser-based processing
Running document operations on the user’s device reduces unnecessary document transfer and makes the workflow easier to understand. It also means performance depends on the browser and device, especially for large or image-heavy PDFs.
Built by FlowLab
FlowPDF is built by FlowLab, which creates custom workflow applications, operational tools and automation. The visible FlowLab attribution supports the ongoing development of FlowPDF.
Product approach
- Make each PDF task focused and understandable.
- Explain when an operation changes text, links, quality or forms.
- Keep file-processing logic inside the browser where practical.
- Improve tools based on aggregate usage rather than document contents.
Questions or feedback
Visit flowlab.works to contact FlowLab.
Why the tools are 100% free
FlowPDF is also a practical example of the systems FlowLab can build. The tools are available without a paid plan, registration or an added advertising watermark. If the experience is useful, the Built by FlowLab links let you learn about FlowLab and explore custom workflow applications. You do not need to follow those links to finish a PDF task.
A useful tool, with clear limits
Different tasks have different trade-offs: a visual signature is not a certificate-backed signature, cropping is not redaction, and image-based exports do not retain editable text. The tool guides explain those differences before you attach a file. Keep original documents and check every downloaded result, especially when a form, contract or submission has specific requirements.