Free Credit Card Payment Software

Proforma by Webtropy

Proforma enables you to process credit card transactions in a customer-not-present environment. This is ideal for businesses that take orders via mail, phone or by email. The software is completely open source, and is available as a stand-alone program, webpage-based or component based. No merchant account is required, nor is there any setup fee or monthly charges.

proforma merchant account paypal shopping cart credit card processing e-commerce internet merchant if

TinyPDF by Real Software Solutions

Use any printable document to create professional quality PDF files totally free, with no need of Acrobat or GhostScript. No adware, No spyware, No malware, No watermarks, No popup - no catch! Completely FREE PDF Converter and Creator - not just a demo or trial version. Append & Merge PDF files after conversion. JPEG compression and Bicubic downsampling to produce smaller PDF files. Automatic font embedding for virtually all languages.

printer tinypdf pdf small

Graph by Ivan Johansen

This program is for drawing graphs of mathematical functions in a coordinate system. Graphs may be added with different color and line styles. The program supports standard, parameter and polar functions. It is possible to evaluate a function at an entered point or tracing the function with the mouse. It is possible to add shadings to functions, and series of points to the coordinate system. Trendlines may be added to point series.

drawing program system coordinate graph functions mathematical