ILovePDF - ONLINE PDF CONVERTER

https://www.ilovepdf.com/

Every tool you need to work with PDFs in one place. Every tool you need to use PDFs, at your fingertips. All are 100% FREE and easy to use! Merge, split, compress, convert, rotate, unlock and watermark PDFs with just a few clicks.

ORGANIZE PDF: Merge PDF   Split PDF   Remove pages   Extract pages   Organize PDF
OPTIMIZE PDF: Compress PDF   Repair PDF
CONVERT TO PDF: JPG to PDF   WORD to PDF   POWERPOINT to PDF   EXCEL to PDF   HTML to PDF
CONVERT FROM PDF: PDF to JPG   PDF to WORD   PDF to POWERPOINT   PDF to EXCEL   PDF to PDF/A
EDIT PDF: Rotate PDF   Add page numbers   Add watermark
PDF SECURITY: Unlock PDF   Protect PDF

PDF XChange Viewer 2.0.42

http://www.oldversion.com/windows/pdf-xchange-viewer-2-0-42
PDF-XChange Viewer is a free PDF editor/reader, which allows you to view and edit PDF formatted documents. The application has an attractive and intuitive user interface.

PDF-XChange Viewer allows you to work with your documents both quickly and smoothly. You can skip pages, view documents in a number of layouts, and search to locate pages and keywords with ease. The applications toolbars are completely customizable with numerous configuration options.

nanoCAD

https://nanocad.com/products/construction/download/

nanoCAD is an easy-to-use CAD application that delivers a great user experience by providing high performance, full capability, a classic interface and native .dwg format support.

DWG FastView-CAD Viewer & Editor - Android APK

https://play.google.com/store/apps/details?id=com.gstarmc.android&hl=en

DWG FastView is a cross-platform CAD software that meets designers’ demands in all kinds of situation, and fully compatible with DWG, DXF. Various of CAD features such as: Edit, View, Measure, Dimension, Find text, etc. enables you do real CAD work on the go and enjoy the best mobile CAD experience.

View, Edit, Create & Share all your CAD drawings, synchronize to cloud from multiple devices by one click, enjoy design anytime anywhere together with more than 25 million users around the world. 

Flat Pattern Bend - Android APK

https://play.google.com/store/apps/details?id=ru.sotnikov.flatpattern&hl=en

    

Calculator will calculate the necessary dimensions for the construction flat pattern segments lobsterback bend, elbow , tee piece, frustum cone and truncated pipe, flat back cone, oblique cone tee, offset tee, oblique transition from Squar/ Rectangle to Round, auger segment, transition from rectangle to square, truncated cone with an accessible vertex and triangulation method.

Calculation flat pattern used as a template for cutting the pipe, producing with wall thickness s = 0.

Added the function of saving a flat pattern to a DXF file for 7 figures . The file is saved to the Download / DXF / folder (permission to write the file is required).

Maths Formulas Free - Android APK

https://play.google.com/store/apps/details?id=com.nsc.mathformulas.lite&hl=en

 

Available in many languages, this is a perfect app on Google Play that provides all basic formulas in mathematics. It's very convenient for all students in high school or university and engineers to look for any easy or complicated formulas. It includes: Geometry , Algebra ,  Trigonometry ,  Equations ,  Analytic Geometry ,  Differentiation , Integration,  Matrix,  Probability and statistics,  Units Conversion,  Math Tricks...  This app also has many tools to calculate the geometric shapes or find the roots of equations. 

KONIČNI ZATIK - TAPER PIN - DIN 1 - Taper and angle calculation

http://www.magafor.com/841/uk.htm#

Fill-in below, three of the parameters from your borehole, then the remain parameter will be automaticaly calculated.

Ispunite tri parametra konične rupe, preostali parametri će se automatski izračunati.