PDF Comment & Markup Tools: Add Polyline and Polygon Comment to a PDF Document New PDF Comment12:Connected Lines and Polygon Tool(See Exampleand Example)This tool creates ConnectedLines (Polyline)or Polygon comment on the PDF page. The polyline is a series of open,connected straight lines. The polygon is a series of closed, connectedstraight lines with the last line connecting back to the first line toform a complete shape.
You can use Xournal to draw your signature into PDF documents. Found it after recommending Inkscape in my other answer, and for signing PDFs 'quickly and cheaply' it's much better. Advantages include all those of the Inkscape solution incl. Vector-oriented signatures, plus: (1) no-fuzz configuration of pen and pressure sensitivity, (2) no extra steps for signing multi-page PDFs.
This tool gives you morecontrol and flexibility. You can change the look (color,opacity, border style and so on). For the polyline drawing, you can editthe beginning and ending straight lines so they use arrows and otherpointer styles. When opened, they display a pop-up window containing thetext of the associated note to explain each drawing in more detail.1.
Steps on how to create a PDFcomment using Connected Lines or Polygon Tool:. Choose Drawing Tools Draw PolygonorDraw Connected Linesor clickDrawing ToolsDraw PolygonorDraw Connected Lines in the.Move the pointerto the place where you want to begin drawing. Click the leftbutton to create the start point, move the pointer, and click tocreate each segment. To exit the editing state, Press'Esc' or 'Enter', Doubleclick the left mouse button, or click on any Toolbar. The new commenting properties dialog comes up to setoptions. To create a polygon, Click 'Close Path'.To edit the curve path, right-clickthe curve and the following menu comes up:To delete a point, move the cursorto an existing point; To add a point, move the cursor to a segment.To erase parts of the drawing,select the Curve Eraser Tool and drag across the point or segment ofthe drawing that you want to remove.
Click the mouse button toerase.2. Access the properties:. Click the Selection buttonfirst. Click inside the area to highlight it and clickProperties Button. Or, click the edge shadow and double-click again. Or, Key F43.
Set the properties:Here is the list of the properties. Text Stringthe content textstring to be displayed for the annotation.Spell CheckerVerifythe spelling of words in the text string box.AuthorThe author of theannotation.SubjectText representing ashort description of the subject being addressed bythe annotation.Close PathUncheck it to create apolyline.
How do I sign a PDF in Okular? I tried searching for about 20 mins, but I can't find any answers.I have a.png of my signature, and I basically want to insert it into the document on the dotted line.
An electronic timestamp etc would also be nice, but is not required.I found, but it uses GIMP instead of Okular. Also, it doesn't appear to timestamp the document.The article is a bit old (2010), so I wonder if Okular has a PDF signer yet? Was also helpful, but does not have the turn-key solution that I am looking for. Okular is limited by it's backend poppler. Within the last few months poppler has slowly been adding support for the nss backend.However, until this functionality is exposed in it's API (also being worked on) and until that API is utilized in Okular, it won't be able to sign/verify signed PDFs.The cli tool pdfisg that comes with recent version of poppler can read signatures and determine if the signature is valid and if the cert issuer is trusted.For signing, there is a FOSS java app called PortableSigner that can sign PDF documents.Recent versions of LibreOffice also feature document signing. There are no FOSS PDF readers that can sign an Adobe PDF.
The reason for this is that signable PDFs created with Adobe tools use Adobe proprietary extensions of the PDF format. PDF is an open format but in this case Adobe have created their own extensions which are owned, patented and licensed by them in order to prevent others from being able to do this.The only way that a PDF can be signed using FOSS software is to wrap the PDF inside of an open digital signature file format.You could also investigate remote signing services, where your PDF will be presented to you as HTML which you can then sign. You can sign weakly with an adopted picture of something that resembles your hand written signature - which is a very bad idea as noted by other answers and comments.
You can sign more strongly with a cryptographic key - usually with the proviso that the remote signing service hold your key. I do not know if any remote signing services allow you to hold the key, for example, on a 2-factor token device or encrypted on your own hard disk. So, it's been about 1.5 years since I asked this question, and I still haven't found an optimal solution for this issue. The main shortcoming is finding a FOSS program to cryptographically sign and verify a PDF document.I think the accepted answer details the situation best, as well as why Okular falls short.So, I just wanted to share my current solution, which inserts a png of my image using GIMP. Basically, I am following the steps outlined in the article from my question. But I also use a GIMP plug-in to handle multi-page PDF, outline here: And here is the plug-in:I know that solution is not cryptographically correct, but it works for me! But if someone can outline a FOSS solution that can cryptographically sign a PDF document, I will gladly accept that answer!