Release iText 7.1.5

iText 7.1.5 is the fifth maintenance release for iText 7.1 Core/Community. We're also updating the add-ons pdfHTML to 2.1.2, pdfCalligraph and pdfSweep to 2.0.3, and pdfXFA to 2.0.1.

In total, about 50 tickets were closed, many of which were of significant complexity.

iText Core/Community 7.1.5 for Java - for .NET

kernel

We can now also read MMType1 fonts (we treat them like regular Type1 fonts)
We now support 24bit and 8bit depth Transparent PNG images
A fix for a very rare yet stingy memory leak

layout

It is now possible to add a Link element to a Canvas
Improvements to Font parsing and resolving
Reported issues with character spacing and text chunk repositioning

sign

Fix security incident where our signature checker is too lenient. The CVE number for this vulnerability is pending.

svg

The much requested feature clipPath is now supported
Path operator improvements

Other modules

Small fixes for forms, pdfa, styled-xml-parser, and barcodes. Fixes in io are for pdfCalligraph

pdfHTML 2.1.2 for Java - for .NET

Features

support for SVG encoded in a data-uri
support for a table's caption element
support for border-radius on img tags
support for value in list items

Fixes

incorrect page-margin box dimensions calculation
bugs related to font providers, RTL, and property inheritance
"!important" CSS attribute ignores "display:none"

pdfCalligraph 2.0.3 for Java - for .NET

Fix for when GlyphLine content throws an exception if it contains an empty ActualText field
Thai mark combinations are now supported
Improved support for Hebrew table nesting

pdfSweep 2.0.3 for Java - for .NET

pdfSweep now supports redacting all annotation types

pdfXFA 2.0.1 for Java - for .NET

4 fixes for JavaScript evaluation problems (1 specifically for .NET)

Bugs

[DEVSIX-2530] : Unconventional Rectangle definition in flattening logic causes text to be flipped.
[DEVSIX-2526] : Pushbuttons with empty /V cause a NPE when regenerating appearance.
[DEVSIX-2418] : Form Flattening failing if SubType doesn't exist in the appearance stream.
[DEVSIX-2421] : Appearance Stream can be a PdfDictionary or a PdfStream.
[DEVSIX-2408] : Appearance isn't regenerated for radio buttons after setting any property.
[DEVSIX-2506] : Replacing glyhline's content may result in an exception if it has an empty actual text field.
[DEVSIX-2368] : Thai mark combinations not working for specific font.
[DEVSIX-2405] : PdfCanvasProcessor throws exception when an empty path is closed in content stream.
[DEVSIX-2374] : Form filling of empty text fields copied in smart mode results in wrong appearances.
[DEVSIX-2137] : Out of Memory when Copying an XObject in Smart Mode.
[DEVSIX-1934] : Add 24 and 8-Bit Depth Transparent Image to PDF.
[DEVSIX-1889] : NullPointerException on optional dictionary (PdfTextExtractor).
[DEVSIX-2517] : Several issues with PdfOutline processing .
[DEVSIX-2552] : iText applies the characteristics of a chunk (ascender/descender/width/...) to a line even if in the end the chunk is moved to another line.
[DEVSIX-2525] : FontProvider in layout cannot be used with font-names or aliases that contain symbols other than [A-Za-z0-9-_].
[DEVSIX-2429] : Image shouldn't be forced placed if some content was already placed.
[DEVSIX-2486] : Impossible to add a Link element on Canvas.
[DEVSIX-2414] : Character spacing is not considered while applying justification.
[DEVSIX-2228] : ArrayIndexOutOfBounds in TableRenderer.
[DEVSIX-1830] : Interaction between TabStop and Table.
[DEVSIX-2172] : PDF/A-1b CheckField always on.
[DEVSIX-1883] : Hebrew tables not nested correctly.
[DEVSIX-2587] : Do not create a new FontProvider instance on ProcessorContext#reset.
[DEVSIX-2481] : Fix "overflow: auto | scroll" handling together with floating children elements.
[DEVSIX-2386] : inline CSS: "!important" makes pdfHtml ignore display: none property.
[DEVSIX-2118] : Background from parent inline element does not have any effect on child inline element.
[DEVSIX-2101] : Orphan line allignment in justified Hebrew.
[DEVSIX-2115] : PdfHtml: Alignment issue with hebrew.
[DEVSIX-2002] : pdfHtml: process block elements inside a paragraph.
[DEVSIX-2455] : PdfHtml does not support value attribute in an ordered list.
[DEVSIX-2470] : pdfSweep doesn't redact the text which bbox is a degenerate rectangle.
[DEVSIX-2465] : pdfXFA: static text doesn't get updated after javascript evaluation.
[DEVSIX-2504] : pdfxfa .isNull not working.
[DEVSIX-1755] : Infinite loop in XFAFlattener#Flatten when flattening document in .NET.
[DEVSIX-2059] : pdfXFA and XFAWorker IndexOutOfBoundsException when flattening form.
[DEVSIX-2422] : iText incorrectly validates signatures for doctored PDF files.
[DEVSIX-2285] : ResourceResolver do not respect absolute path without `file:/` on unix.
[DEVSIX-2462] : Avoid calling platform dependent ToString() method after porting in SVG.
[DEVSIX-2442] : SvgProcessingException: The close path operator (Z) may not be used before a move to operation (M).
[DEVSIX-2356] : Don't trim text with length 1 in SVG.

New features

[DEVSIX-2469] : Support MMType1 font type as document font.
[DEVSIX-1980] : Support border-radius on <img> tags.
[DEVSIX-2067] : SVG: support clipPath.

Tasks

[DEVSIX-2433] : RTL list item markers are not placed correctly.
[DEVSIX-2096] : Support SVG encoded as base64 inside img tag.
[DEVSIX-2375] : Functional tests for SVG clipping path element.

Improvements

[DEVSIX-2533] : Using layout.Document to place elements on already flushed pages throws not clear exception.
[DEVSIX-2136] : layout and html2pdf : Distinguish between FONT and FONT_FAMILY properties.
[DEVSIX-1896] : Support "nowrap" value of "white-space" css property value.
[DEVSIX-1050] : Html2Pdf: compute page-margin box dimensions according to spec.
[DEVSIX-982] : Html2Pdf: Support <caption> inside a <table>.
[DEVSIX-2474] : pdfSweep annotations redaction: generalize basic support for all annotation types.
[DEVSIX-2604] : Update affinetransform javadocs to specify rotations are done in radians.
[DEVSIX-2472] : Refactor TabsTest's source/dest folder names to be the same as the test's name.