PDF Constructor vs. PDFspy vs. Python vs. TCPDF Comparison Chart

PDFspy is the ultimate “get info” utility for your PDF documents. It can extract a comprehensive list of attributes from a PDF file into an XML-based format. Support for PDF 1.7/ISO 32000 (Acrobat 9, X, DC). Element now shows CMYK separations that are actually used by text and vector elements. The new element that shows the number of shading objects in a PDF file. A restored output being written to stdout if -o option not used, recommend using -quiet option when writing to stdout. Fixed calculation of page labels. An improved text extraction algorithm. Calculates color simulation values for ICCBased, separation and DeviceN colorspaces. Improved Unicode, ISO Latin, and AdobePDF character set support. Fonts usage (name, type, embedding & subset status, use of Unicode). Asset management system, extract page count, metadata, font & image information. Document management, determine text or image-only documents, and extract comments.

TCPDF is now one of the world's most active open-source projects, used daily by millions of users and included in thousands of CMS and web applications. No external libraries are required for the basic functions, all standard page formats, custom page formats, custom margins, and units of measure. UTF-8 Unicode and right-to-left languages. TrueType Unicode, OpenType Unicode, TrueType, OpenType, Type1 and CID-0 fonts, and font subsetting. Methods to publish some XHTML + CSS code, Javascript, and forms. Images, graphics (geometric figures), and transformation methods. Supports JPEG, PNG, and SVG images natively, all images supported by GD (GD, GD2, GD2PART, GIF, JPEG, PNG, BMP, XBM, XPM), and all images supported via ImagMagick. Automatic page header and footer management. Document encryption up to 256-bit and digital signature certifications, transactions to UNDO commands, and PDF annotations, including links, text and file attachments.