I found a pictures ,it can show a pdf files contents.so some one can tell me what's this software's name?enter image description here
That is one of many COS viewers
iText call theirs RUPS
in this case its Adobe PreFlight
Some are more graphic than others here is one simple free viewer but I tend to use the one found in Xchange PDF editor, as it shows the target objects, but may need another to verify raw content.
Related
I would like to ask the following if possible. We have a client that wants a separate pdf document, embedded in a main pdf document and opens when you click it. Like the function in MS Word where you can attach another Word document inside a Word document (Word-ception, lol) and you can still open it.
I've tried it in Acrobat Pro with the Attachment and Link tools. Another option was to put the link document in an ftp server for accessibility. but our client really wants this functionality. Is this possible in Indesign?
Thank you!
Using Word as your example vehicle there are several ways to link 2 documents.
One is an appendix to the other, in PDF terms is a merge or binding but its one flowing document with separate sequential sections/chapters.
Another way is to link to an external file, in PDF terms a hyperlink to a relative second file, which can be locally folder relative or a web absolute reference. You have tried that.
In Word we can add objects internally with icons, in PDF that can be an annotation comment attachment to save externally and action accordingly. You also seem to discount that approach.
Finally PDF offers an Adobe Specific Structure where multiple PDFs attachments can be imbedded in an overall PDF wrapper. These are called Portfolios and not! to be confused with their portfolio service
They are unpopular since in a browser without Adobe Reader they should only offer the cover page.
Whilst in securer offline readers the files may well be shown as attachments that you need to save or independently open to view them.
Only some non Acrobat viewers may view them as a collection. And in the past that required runing insecure SWFlash, But I understand that has changed ?
Here is how the 3 internal PDF files seen above were shown in older Acrobat 9.
Possibly the best experience is using Foxit Reader
I've built my own .PDF carefully following Adobe PDF specifications. macOS has Preview and that opens and displays the PDF document properly, but Acrobat Reader reports an error, not specified, and does not display the document.
If I open it with Preview and export it from there as another PDF, the result is shown properly by both Preview and Acrobat Reader.
The Preview version is somewhat inexplicably complicated and I cannot determine what difference was done by Preview to allow Acrobat to handle it.
Nor have I been able to find software, even from Adobe's site, that will diagnose the problem.
I have attempted many reasonable variations, additions, etc. on my PDF, to no avail.
What's the secret formula to unlock the beast?
In response to the request, here's an abbreviated copy of the PDF file. All the controlling objects are present but I've deleted portions of the streams to spare you the scrolling. There are two fonts on one page which is an amalgam made of two separate source PDFs, one generated by me and the other from a different supplier, hence the preliminary /Contents objects setting up scaling preliminary to each page object.
Well, after placing the sample here, I get a reject message saying there was an error submitting the edit.
I'm going to try again after eliminating all the compression code in the streams and much of the uncompressed formatting code, to save you from all the scrolling.
(PDF code removed as requested. Stay tuned for update.
I have a small PDF file, which is supposed to display just the string "Hello World!".
Unfortunately, it displays black boxes instead of the characters. I suppose there is some problem with the fonts, but I am not sure.
Is there a way to diagnose and troubleshoot this issue? All I see on the Internet is advices to do this and to do that, which helps to some and does not to others (nothing helped me). Looks like shooting in the dark to me.
Here is a concrete example. Why does this PDF display black squares instead of the string Hello World ?
EDIT
A bit of the context. I am trying to convert a trivial HTML to PDF using the wkhtmltopdf tool. It is an absolute frustration, because according to the Internet searches the tool is supposed to work and do it quite well. But the thing does not work for me and nothing I do changes this! Unfortunately, this tool seems the only free tool to convert HTML to PDF. This is a huge bummer.
If you want to find out whether a PDF is valid or what is wrong with it, there are a few general steps you can take:
1) Open it in Adobe Acrobat or Adobe Reader (on a desktop platform, not a tablet device). For a very long time the PDF format was owned by Acrobat and the way their software handles PDF is still close to the gold standard. However, there is a caveat with this; Acrobat is very, very smart in the way it handles PDF files and it will overlook or actively correct a number of mistakes other PDF engines might have a problem with...
2) Get yourself a preflight tool. These tools were invented for use in graphic arts, but have applications outside of it too. Popular examples are callas pdfToolbox (warning, I'm affiliated with this vendor!) or the "Preflight" plug-in you'll find in Adobe Acrobat Pro (which is actually also callas technology under the hood). Then preflight specifically against the PDF/A-1b or PDF/A-2b standard.
That last point deserves some more explanation. You should pick a PDF/A compliant preflight profile because the PDF/A (or PDF for Archival) standard is extremely picky. It's goal is to make sure that PDF files will still be readable in exactly the same way 50 years from now and to ensure that it tests a whole range of properties of the file itself and the different components in it. You might be able to ignore some of the errors you get (because some of them will be connected to the fact that the PDF/A identification isn't correct for example) but I wouldn't ignore any other errors unless you understand exactly what they mean and why they aren't relevant.
PS: Can you make your test file available some other way? The file you shared in your question is useless I think. When I do "Download" I get a PDF file that doesn't contain text and doesn't have fonts in it. Those rectangles you see are exactly that - rectangles. So this PDF renders fine - it's the PDF generation process (or the fact that you stored the file on Google docs - I really have no clue what that might do) that went berserk apparently.
In addition to David's hints (first using a known good viewer and then some preflight tool), there is a third level in the inspection process:
3) Inspect the PDF with your own eyes and with the PDF specification (made available by Adobe here) at hand in a text viewer (for a first impression) and (if the cause of the issue at hand is not immediately visible) then in a PDF browsing tool (for in-depth analysis).
This step is quite cumbersome at first but after some time you learn your way around in the PDFs.
A sample for such a PDF browser tool is RUPS but there are others around, too.
'Small PDF file supposed to display "Hello World!"'
Not correct. The file you linked to does not contain any code that could render pixels on screen or on paper that a human brain would read as "Hello World!". The file indeed does only contain vector drawing operations which result in 12 black boxes.
The command line tool pdffonts does not indicate any font being used in the file:
pdffonts so-file-#15858199.pdf
What could still cause the "rendering" of the words you are looking for: some vector or pixel drawing code contained in the PDF. To find out about this, you'll have to look into the low level source code of the PDF.
The original file is 1.570 Bytes. So this task looks not as being overly huge.
'Is there a way to diagnose and troubleshoot this issue?'
Using qpdf, a "command-line program that does structural, content-preserving transformations on PDF files", you can expand all contained streams (which are normally compressed):
qpdf --qdf --object-streams=disable so-file-#15858199.pdf qdf-#15858199.pdf
The resulting file, qdf-#15858199.pdf, is 3.875 Bytes. Now open it in a text editor. PDF object no. 6 (lines 66-219) contains the contents of the page. Lines 123-194 contain only the operators m (moveto), l (lineto) and h (closepath). These lines contain 12 different groups of drawing commands, where each one represents the path for one of the 12 black boxes you see rendered on screen or printed on paper:
102.400001 12.8000001 m
268.800004 12.8000001 l
268.800004 179.200002 l
102.400001 179.200002 l
102.400001 12.8000001 l
h
Line 196 contains
f
which is the fill operator to actually fill black color into so far constructed (closed) path. Nothing in the other lines (which I didn't analyze in detail) does any drawing that may resemble the shapes of any glyphs.
'Unfortunately, this tool seems the only free tool to convert HTML to PDF'
Not correct either.
1.
Assuming your "free" is meant as free as in liberty, then an alternative option is HTMLDOC.
HTMLDOC does not support specific fonts which may be assigned to your HTML input via CSS, but it does a good job in converting one or multiple HTML documents into a single PDF book containing chapters, page-numbering, page headers and footers and more. For all options available, see its full documentation.
2.
Assuming your "free" is meant as free as in beer, then an alternative option (for private usage only) could be PrinceXML.
PrinceXML does an extraordinarily good job when it comes to support almost all CSS features your HTML document may be using. See its documentation and also some of the sample PDF files produced by PrinceXML.
I'm looking for accessibility tool , to make it easier to read pdf's.
In short, it should be possible to easily see which line is being read ( a bit like a ruler,when it comes down to text ), to avoid losing the line that is being read.
I was wondering if anyone knows any solution for this , for example a plugin for Adobe Acrobat Reader, etc...
Any suggestions are welcome.
I don't think there is a plug-in for Acrobat Reader. You may want to look at ZoomText or ClaroRead. Of course these only work if the PDF has text, but not images of text.
A low tech solution would be to open a Notepad doc and size it how you need. If you are on Win7 you could do this with sticky notes.
Another approach I've used is to convert the PDF to HTML and then run a server with it. This is fairly simple to accomplish using Live Server in VScode.
In the Chrome browser, we may then use accessibility extensions, such as ReadingBuddies, that have reading ruler functions.
Otherwise consider,
Use a PDF reader that has a built-in reading ruler feature, such as Adobe Acrobat Reader DC or Foxit Reader.
Use a PDF reader that allows you to add a reading ruler as an annotation, such as Xodo PDF Reader.
Use an online tool that allows you to view PDFs with a reading ruler, such as Smallpdf's PDF Reader.
Use a screen ruler tool, such as the one offered by How-To Geek, to measure the PDF on your screen.
The academic term is sometimes called RSVP (Rapid Serial Visual Presentation), there are patented hardware and software versions but in principle it is simply a translucent masking added to the viewport. see https://softwarerecs.stackexchange.com/questions/28582/is-there-an-equivalent-to-a-reading-guide-strip-for-windows-os-x-or-linux and http://www.see-n-read.com/products/esee-n-read-2/
10 years later and its 2023 so software such as browsers should include such features here is Edge in some sites where Immersive Reader is supported but not StackOverflow !! The above example is using an edge extension. https://microsoftedge.microsoft.com/addons/detail/screen-mask/dfanfcmhbdocjfpmnoebccndgmhlincl others are available for other browsers https://chrome.google.com/webstore/detail/reading-ruler/phiedfcbjfjagnjikfbobmldbpmdcpfk
To get the Reader Mode options on Chrome: or Edge look at the available flags
However if you save page as PDF and read aloud it is then used there !
Some PDF readers like Mac Skim include such accessibility option.
However, simplest is :-
Most PDF readers can be reduced to focus viewport on single lines and with auto scrolling that allows for more focused "line by line" reading without the audio, plus fast and easy adjustments/enlarging for PDF variable lines with illustrations.
Note as per above PDF where much of the text is actually one or two lines out of order it is not trivial for a PDF reader to understand which text base line is independently to be used next. in reality "Read Aloud" will read two variable height lines then jump to top of page then back to the second visible line. PDF lines are not the visible order nor a constant height/spacing, you might expect.
We are using Blackberries to display PDF reports. Here are background details on the problem:
The PDF reports are created using JasperReports.
Report format can be changed.
Different report formats are available (as per the feature set of JasperReports).
The PDF reports are on a website, too, so retaining a single source is ideal.
The page setup is in Landscape.
Here are the issues we have encountered:
Users cannot see a full line of text on the Blackberry.
The size of the PDF and UI makes reading difficult, at best.
The menu option to convert the PDF to text loses too much formatting to be useful.
The text is blurry (and too small).
Here are solutions we have thought about:
Create a second report (not ideal) in text or HTML format.
Simplify the original report format (not really an option, given the amount of data).
What other options are there for making a report available on the Blackberry, given the constraints of JaserReports, such that the report:
Is legible?
Is formatted for readability?
Displays quickly?
Essentially, we'd like to make sure there are no simple solutions we have overlooked for displaying legible PDFs on Blackberries.
We convert TIFFs to PDF for one of our applications, and have had mixed results with BlackBerry PDF viewers. These were our results.
Working
The following PDF readers worked for our purposes:
RepliGo Reader v1.1.1.1 - $19.95
Works fine.
DataViz Documents To Go Premium Edition v1.003.001 - $49.99
Works and includes a word wrap option to get the current zoom level to fit the available screen width, by moving text onto subsequent lines. Might fit your needs.
Non-Working
The following PDF readers did not work for our purposes:
BeamReader v1.0.8 - $17.99
BeamSuite v3.0.2 - $49.99
These couldn't open our PDF files ("Unsupported document format"). In addition they did not register as a PDF content handler, required for our application.
MasterDoc - $19.95
eOffice - $29.95
These also did not register as a PDF content handler. We had a range of problems with these, including installation issues, and not being able to open any PDFs at all.
Try BeamReader http://www.slgmobile.com/beamreader.html
I hear it's the best at reading PDFs for BlackBerry
How about outputting the file to an RTF or an image file (JPG/GIF), and then viewing them in your web browser?
If that doesn't work well on the native browser, I would focus on viewing the file via some other web browser - for example, Opera Mini. I know for images it's easier to navigate "big" images in Opera Mini than the native browser.
If your blackberries are on a BES server, couldn't you display the reports as HTML on your corporate intranet? - Then you could email a link to the blackberry and simply browse the report.
You can convert pdf to image via xpdf and than show image. xpdf is a BEST renderer of pdf.