FAQ | iText Knowledge Base (original) (raw)
Last updated FAQs:
- Resolving MissingMethodException and AWS SDK Compatibility in .NET Applications
- How to use iText with Flutter?
- How can I find code examples for specific iText versions or releases?
- What features are supported or unsupported in pdfHTML?
- How does iText handle PDF encryption?
- How to deploy an iText License for Azure PowerShell?
- Resolving Microsoft.DotNet.PlatformAbstractions.dll Exception in Azure Functions
- Where are your .NET examples?
- Is iText free?
- How to merge PDFs and add bookmarks?
- How to solve an UnsupportedCharsetException when using itext-asian.jar
- How to fill XFA form using iText without breaking usage rights?
- How to move the content inside a rectangle inside an existing PDF?
- Where can I download the license key library?
- Can I create a Reader-enabled PDF using iText?
- How to change the order of Optional Content Groups?
- How to change a background Image into a watermark by altering the opacity?
- How to encrypt PDF using a certificate?
- Why can't I extract text added using a Type3 font correctly from a PDF?
- How to add an x-offset to a text pattern with every x-step?
- How do I create a separate OCR layer?
- How can I create a Reader enabled PDF with a signature field that can be signed in Adobe Reader
- Does a PDF file have styles, headers and footers?
- How do I add XMP metadata to each page of an existing PDF?
- How to set the OCG state of an existing PDF?
- Can I change the page count by changing internal metadata?
- I upgraded to iText version 7 or 8, how do I use my license?
- Do I need a license for Windows fonts when using iText?
- How do I install iText Core?
- Are iText 5 and iText 7 backwards compatible?
- Argument not specified in iTextSharp
- Could not find a glyph corresponding to Unicode character
- Do we license per functionality /feature?
- Do you have authorized resellers?
- Do you have customer testimonials?
- Does anyone have any idea how TabStop works?
- How can I add a new AcroForm field to a PDF?
- How can I add an image to all pages of my PDF?
- How can I add titles of chapters in ColumnText?
- How can I convert a CSV file to a table with a repeating header row?
- How can I crop the pages of an existing PDF document?
- How can I find the border color of a field?
- How can I find the maximum character limit for a text field?
- How can I generate a PDF/UA compatible PDF with iText?
- How can I load a font from /WEB-INF/resources/fonts/foobar.ttf?
- How can I log the number of documents / bytes I've processed?
- How can I read Roman page numbers?
- How can I serve a PDF to a browser without storing a file on the server side?
- How can I set the zoom level of a PDF using iText 7?
- How can I use regular and bold in a single String?
- How do I change the border color of a PdfPCell?
- How do I extend my 30-day free trial?
- How do I get a free trial?
- How do I get an object if I have its indirect reference?
- How do I insert a hyperlink to another page in an existing PDF?
- How do I renew my license?
- How do I rotate a PDF page to an arbitrary angle?
- How do I set parameters back to the default value?
- How do I use pdfRender in a .NET environment?
- How do setMinimumSize() and setFixedSize() interact?
- How do we define an application?
- How does a PdfPCell's height relate to the font size?
- How does iText Group count processes/files?
- How much does it cost to upgrade iText 5 to iText 7?
- How should I interpret the coordinates of a rectangle in PDF?
- How to adapt the position of the first line in ColumnText?
- How to add "continue on next page" / "continued from next page" to a table?
- How to add a background image to a cell?
- How to add a border to a paragraph?
- How to add a border to a PDF page?
- How to add a cover page to an existing PDF document?
- How to add a full line break?
- How to add a hidden text field?
- How to add a map with a pointer to a PDF?
- How to add a new form from an existing PDF template?
- How to add a page number in the header of a PDF/A Level A file?
- How to add a printable or non-printable bitmap stamp to a PDF?
- How to add a rectangle to every page of a document?
- How to add a shading pattern to a custom shape?
- How to add a table as a header?
- How to add a table in the top-right corner of the page?
- How to add a table on a form (and maybe insert a new page)?
- How to add a table to the bottom of the last page?
- How to add a text to the left and to the right in a header?
- How to add a watermark to a page with an opaque image?
- How to add alternative text for an image in Tagged PDF?
- How to add an image and text to the same cell?
- How to add an image to an AcroForm field?
- How to add an image to an existing PDF using AffineTransform?
- How to add an image watermark to a PDF file?
- How to add an In Reply To annotation?
- How to add an inner table surrounded by text?
- How to add an onMouseOver javaScript action to a TextField?
- How to add blank pages to an existing PDF in java?
- How to add blank pages while concatenating several PDFs using PdfSmartCopy
- How to add inline spacing in a PdfPCell?
- How to add JPEG images that are multi-stage filtered (DCTDecode and FlateDecode)?
- How to add multiple images into a single PDF?
- How to add text as a header or footer?
- How to add text at an absolute position on the top of the first page?
- How to add text inside a rectangle?
- How to add text to an image?
- How to add two images in one cell?
- How to align a label versus its content?
- How to align AcroFields?
- How to align two paragraphs to the left and right on the same line?
- How to allow a Unicode subscript symbol in a PDF without using setTextRise()?
- How to allow page extraction when setting password security?
- How to apply color to Strings in a Paragraph?
- How to attach files to a PDF?
- How to avoid an exception when importing a TIFF file?
- How to calculate the height of an element?
- How to calculate/set font line distance?
- How to change the author name for comments?
- How to change the color of a circle annotation?
- How to change the color of pages?
- How to change the icon of a push button field?
- How to change the line spacing of text?
- How to change the properties of an annotation?
- How to change the spacing between words and characters?
- How to change the text color of an AcroForm field?
- How to change the zoom factor in link annotations?
- How to change width of single column of table?
- How to check a check box?
- How to check for an event and remove it?
- How to check if a font is bold?
- How to choose the optimal size for a font?
- How to close a PDF file to recreate it? (File in use problem)
- How to continue an ordered list on a second page?
- How to continue field output on a second page?
- How to convert an A4 size PDF to a PDF booklet?
- How to convert an existing A4 PDF document to an A3 booklet?
- How to convert colored images to black and white?
- How to convert PdfStamper to a byte array?
- How to create a clickable polygon or path?
- How to create a complex PDF document?
- How to create a custom dashed line separator?
- How to create a document with unequal page sizes?
- How to create a JavaScript action to open the attachments panel?
- How to create a link to a specific page number?
- How to create a link to launch an external program?
- How to create a list without indentation?
- How to create a nested column?
- How to create a new PDF file if a file name already exists?
- How to create a PDF with a Cartesian grid?
- How to create a PDF with font information and embed the actual font while merging the files into a single PDF?
- How to create a pop-up window to display images and text?
- How to create a pushbuttonfield with double byte character text?
- How to create a table based on a two-dimensional array?
- How to create a table in which the cells have different widths?
- How to create a table with 2 rows that can be used as a footer?
- How to create a table with complex borders?
- How to create a table with only vertical borders?
- How to create a table with rounded corners?
- How to create a TOC when merging documents?
- How to create an uncompressed PDF file?
- How to create and apply redactions?
- How to create hierarchical bookmarks?
- How to create Persian content in PDF?
- How to create radio buttons inside a table?
- How to create unique images with Image.getInstance()?
- How to crop out a part of PDF file?
- How to decrypt a PDF document with the owner password?
- How to define different border types for a single cell?
- How to define multiple actions for a PushbuttonField?
- How to define spacing and leading in PdfPCell objects?
- How to define the data encoding when submitting a PDF form using AcroForm technology?
- How to define the page size based on the content?
- How to define the width of a cell?
- How to delete attachments in PDF using iText?
- How to disable the save button and hide the menu bar in Adobe Reader?
- How to display barcodes in a matrix-like structure?
- How to display indian rupee symbol?
- How to distribute the radio buttons of a radio field across multiple PdfPCells?
- How to divide a page in N parts so we can fill each with a different source?
- How to draw a borderless rounded rectangle?
- How to draw a borderless table in iTextSharp?
- How to draw a line every 25 words?
- How to draw a rectangle around multiline text?
- How to draw lines on an image?
- How to draw vertical gradient in iTextSharp?
- How to embed a font only partially?
- How to enable LTV for a timestamp signature?
- How to extend the page size of a PDF to add a watermark?
- How to extract a page number from a PDF file?
- How to extract embedded streams?
- How to extract text and anchor information from a PDF?
- How to fill a rectangle with color?
- How to fill out a PDF file programmatically? (Dynamic XFA)
- How To find internal links in a PDF file?
- How to find out the current cursor position on a page?
- How to find out which fields are required?
- How to find the absolute position and dimension of a field?
- How to fit a String inside a rectangle?
- How to fix the orientation of a PDF page in order to scale it?
- How to flatten a XFA PDF Form using iTextSharp?
- How to flatten a XFA PDF Form using pdfXFA
- How to format a field as a currency?
- How to format a field as a percentage?
- How to format a String resulting in a two-column display?
- How to generate 2D barcode as vector image?
- How to generate a report with dynamic header in PDF using iText 7?
- How to generate and design PDFs with iText or iTextSharp?
- How to get a font from an array?
- How to get rid of the top padding in a PdfPCell?
- How to get specific types from AcroFields? Like PushButtonField, RadioCheckField, etc
- How to get text and image in the same cell?
- How to get the author of a "free text" annotation?
- How to get the co-ordinates of an image?
- How to get the color properties of an AcroForm field?
- How to get the current page count?
- How to get the image DPI in PDF?
- How to get the number of characters in a field?
- How to get the page number of an arbitrary PDF object?
- How to get the page width and height of a PDF document?
- How to get the rendered dimensions of text?
- How to get the UserUnit from a PDF file?
- How to give an image rounded corners?
- How to hide the Adobe floating toolbar when showing a PDF in browser?
- How to hyphenate text?
- How to increase the accuracy of measurements in iTextSharp?
- How to insert a "linked rectangle" with iText?
- How to introduce a custom font weight in iText 7?
- How to introduce a rowspan?
- How to introduce multiple PdfPageEventHelper instances?
- How to introduce rounded cells with a background color?
- How to introduce superscript?
- How to invoke a page break for nested tables?
- How to keep specific words together on one line?
- How to load a PDF from a stream and add a file attachment?
- How to maintain a paragraph's indentation inside a table cell?
- How to make a field not required?
- How to make a single letter bold within a word?
- How to make an image a qualified mask candidate in itext?
- How to make sure a check box is printed?
- How to merge documents correctly?
- How to merge PDFs from ByteArrayOutputStreams?
- How to modify the size of annotations and make them read-only?
- How to move an AcroForm field?
- How to nest tables without extending the inner table?
- How to only read text from a constant location on PDF pages?
- How to open an MS Word attachment by clicking an image?
- How to position text relative to page?
- How to precisely position an image on top of a Table?
- How to preserve high resolution images in PDF?
- How to prevent images from resizing in a table cell?
- How to prevent splitting a table?
- How to prevent the resizing of pages in PDF?
- How to print mathematical characters like ∈, ∩, ∑, ∫, ? √, ∠?
- How to protect a PDF with a username and password?
- How to protect an already existing PDF with a password?
- How to put text above a barcode instead of under the bars?
- How to read bookmark titles?
- How to read PDFs created with an unknown random owner password?
- How to read text from a specific position?
- How to reduce redundant code when adding content at absolute positions?
- How to remove text from a PDF?
- How to rename named destinations in existing PDF files?
- How to reorder pages in an existing PDF file?
- How to reorder the pages of a PDF file?
- How to resize a PdfPTable to fit the page?
- How to resize an Image to fit it into a PdfPCell?
- How to restrict the number of characters on a single line?
- How to reuse a page from one PDF document into another PDF document?
- How to right-align text in a PdfPCell?
- How to rotate a page 90 degrees?
- How to rotate a page while creating a PDF document?
- How to rotate a paragraph?
- How to rotate a single line of text?
- How to rotate and scale pages in an existing PDF?
- How to send a 'success' response back to Acrobat Reader from a java servlet?
- How to send a file to the server through a PDF?
- How to set a fixed background image for all my pages?
- How to set background image in PdfPCell in iText?
- How to set initial view properties?
- How to set the export value of a check box?
- How to set the line width of a clipping path?
- How to set the page size to Envelope size with Landscape orientation?
- How to set the zoom level of a PDF using iTextSharp?
- How to set up a table display?
- How to show an image at a text field position?
- How to show an image with large dimensions across multiple pages?
- How to shrink pages in an existing PDF?
- How to split a row over multiple pages?
- How to stamp image on existing PDF and create an anchor?
- How to strike through text using iText?
- How to superimpose pages from existing documents into another document?
- How to tell iText how to clip text to fit in a cell?
- How to tell iText which fields to flatten first?
- How to tile a document and add margins to the tiles?
- How to truncate text within a bounding box?
- How to underline a portion of text in a text field?
- How to underline text with a dotted line?
- How to update a PDF without creating a new PDF?
- How to use a dotted line as a cell border?
- How to use a text extraction strategy after applying a location extraction strategy?
- How to use an image as list symbol?
- How to use Cyrillic characters in a PDF?
- How to use multiple fonts in a single cell?
- How to use System Font in iTextSharp with VB.net?
- How to use the font Verdana in PdfStamper?
- How to use the full size of a page?
- How to use two different colors in a single String?
- How to watermark PDFs using text or images?
- How to write a table header if part of a table is forwarded to the next page?
- How to write a Zapfdingbats character at a specific location on a page?
- I have been using iText 5 or 7 without a commercial license but never open sourced my application. What should I do?
- If iText is free why do I have to pay for it?
- Is it possible to attach multiple layout events to a PdfPCell?
- Is it possible to set a different alignment for text on the same line in the same cell?
- Is it safe to remove XFA?
- Is iText PDF a PDF viewer?
- License file was corrupted
- pdfOCR: If your scanned document has a mixture of sections with paragraphs and tables, what is a recommended strategy here?
- pdfOCR: Is handwriting recognition supported
- pdfOCR: Who provided TESS_DATA_DIRECTORY?
- Volume Counter FAQs
- What are the extra characters in the font name of my PDF?
- What does "Not LTV-enabled" mean?
- What does PDF 2.0 stand for?
- What does TextPositioning in pdfOCR do?
- What functionalities does iText 7 support?
- What is causing syntax errors in a page created with iText 7?
- What is the connection between LTV and document timestamps?
- What is the difference between AGPL and commercial license?
- What is the difference between getPageLabels and getPageLabelFormats?
- What is the difference between iText, JasperReports and Adobe LC?
- What is the PdfPTable.DefaultCell property used for?
- What is the size limit of pdf file?
- What's an easy to print "first right, then down"?
- When is the content flushed to a PDF File by iTextSharp?
- Where do I find demos and tutorials?
- Where do I get AGPL tech support?
- Where do I get pre-sales tech support?
- Where do I get tech support?
- Where do I get the PDF library?
- Where is the origin (x,y) of a PDF page?
- Which image types are supported by iText?
- Which languages are supported in pdfOCR?
- Which PDF filters are used to encode data?
- Which version of the license key library should I use?
- Why are PDF files different even if the content is the same?
- Why are the AcroFields in my document empty?
- Why aren't images added sequentially?
- Why aren't my fonts getting registered?
- Why can't I compile the iText source code?
- Why can't I set the font of a Phrase?
- Why do I get a "getOutputStream() has already been called for this response" error in JSP?
- Why do I get a BouncyCastle NoClassDefFoundError?
- Why do I get a font embedding error when creating PDFA/1a?
- Why do I get a message saying 1.not.found.as.a.resource?
- Why do I get a StackOverflowException in the OnEndPage() event handler?
- Why do I get an "InvalidPdfException: PDF header signature not found"?
- Why do I get an "System.IO.FileLoadException: Could not load file or assembly" error?
- Why do I get an error saying that "use of extended features is no longer available"?
- Why do I have to buy core to use the add-ons?
- Why do I have to pay for pdfhtml during my upgrade, when I already have XML Worker in iText?
- Why do PDFs change when processing them?
- Why does ColumnText ignore the horizontal alignment?
- Why does iText enter a cross symbol when CheckType style is check mark?
- Why does my header overlap with my content?
- Why does PdfStamper create a file with 0 bytes?
- Why does the cell background color affect the color of other lines?
- Why does the function to concatenate / merge PDFs cause issues in some cases?
- Why does using ColumnText result in "The document has no pages" exception?
- Why doesn't FontFactory.GetFont() work for all fonts?
- Why doesn't getDefaultCell().setBorder(PdfPCell.NO_BORDER) have any effect?
- Why is content missing in my table?
- Why is iText embedding a font even when I specify not to embed?
- Why is my cell event not triggered?
- Why is my content overlapping with my footer?
- Why is my font not applied when I create a PDF document?
- Why is the page size of a PDF always the same, no matter if it's landscape or portrait?
- Why is the text I extract from an English PDF page garbled?
- Why isn't the Rupee symbol showing?
- How to add / delete / retrieve information from a PDF using a custom property?
- How to merge forms from different files into one PDF?