Frequently Asked Questions
Answers to the most common questions about our free CSC and online-service tools.
General
Yes. Every tool is free to use with no charges, trials or premium plans.
No. There is no sign-up. Open any tool and start using it right away.
Yes, the entire site is fully responsive and works on phones, tablets and computers.
Privacy & Security
No. Image and PDF tools process files directly in your browser. Your files never leave your device.
We do not store your files. Once you close or refresh the page, nothing remains on our side.
Yes. Because processing is local, it is safe for sensitive documents like ID proofs and certificates.
Tools & Usage
Commonly 413×531 pixels (3.5×4.5cm) at 20–50 KB, but always check your specific form.
Use the Signature Resizer and set the target file size slider to 20 KB; it adjusts quality automatically.
Yes. Add as many PDFs as you like and drag to arrange the order before merging.
Use the Percentage Calculator's ‘Marks %’ mode: enter marks obtained and total marks.
Still have a question? Visit our contact page and we’ll be happy to help.