Apple iPhone can not view the password protected PDF files which encrypted by AES256 bit encryption method

Hi,
We used VeryPDF Security and Signature (Shell & COM & SDK) to insert password for system generated PDF file. However, we are unable to use Apple iPhone to open the password protected PDF, the page is blank after entering the password.

http://www.verypdf.com/app/pdf-security-and-signature/try-and-buy.html#buy
http://www.verypdf.com/dl2.php/pdf-security-signature-cmd-sdk-com.zip

Able to advise?

Attached is the sample PDF that we are unable to open using iPhone native email app. A blank page is displayed after the password has been entered.

You may test it using the attached file, with password as "123".

Thanks!
Customer
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We have checked this PDF file, this PDF file has protected by 256bit AES algorithm, I guess iPhone email app doesn't support 256bit AES protection yet, you may use 128bit AES or 128bit RC4 encryption method to try again.

image

You can use following command lines to protect your PDF files with rc4, AES128, AES256 encryption methods,

pdfsecure.exe -openpwd 123 -ownerpwd 456 -perm 0 -keylen 128 -stringcrypt AES256 -streamcrypt AES256 -forceencrypt -linearize readme.pdf _readme_out_aes256.pdf

pdfsecure.exe -openpwd 123 -ownerpwd 456 -perm 0 -stringcrypt AES128 -streamcrypt AES128 readme.pdf _readme_out_aes128.pdf

pdfsecure.exe -openpwd 123 -ownerpwd 456 -perm 0 -keylen 128 -stringcrypt rc4 -streamcrypt rc4 -forceencrypt -linearize readme.pdf _readme_out_rc4.pdf

btw, I just tried to open the PDF files which protected by AES128 and rc4 encryption methods, I could view these encrypted PDF files without any problem, so you may use AES128 or rc4 to instead of AES256 for the PDF encryption, AES256 is a very newer encryption method, some iPhone applications don't support AES256 yet.

5903791b4524b0eb62be2e4e957d1d3

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How to convert from multi-page PCL files to multi-page TIFF files on Linux system?

I am reviewing you product Pcl to Tiff converter Linux Shell and was wondering if there is an option to convert a Multi-page Pcl file to a single Multi-page Tiff file. If I run the pcl2image program it outputs individual tiff pages.

Customer
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image
We apologize for any inconvenience this may have caused to you, I checked with our engineer just now, pcl2tiff and pcl2image software haven't an option to create multi-page TIFF file yet, they can only create multiple single page TIFF files, for example, if your PCL file has 10 pages, the software will create 10 individual TIFF files.

However, we suggest you may use pcl2any to convert from a multi-page PCL file to multi-page PDF file first, then you can use VeryPDF PDF to Image Converter Command Line for Linux to convert from PDF file to multi-page TIFF file again, you may download VeryPDF PDF to Image Converter Command Line for Linux from this web page to try,

http://www.verypdf.com/app/pdf-to-image-converter/try-and-buy.html#buy-cmd
http://www.verypdf.com/dl2.php/pdf2image_linux.zip

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How to print PDF pages to different trays for stapling?

I'm trying to print invoices on different colored paper. I need to be able to print the first page on white paper in one tray, and the 2nd copy of the first page on green paper in a different tray, then staple those two pages together. How do I do that? It's treating them as two different print jobs since they come from two different trays. How do I tell it where the start and end of the print job is?

Customer
------------------------------------------

image
Thanks for your message, you may use two different command lines to print your PDF file to different trays, for example,

pdfprint.exe -firstpage 1 -lastpage 1 -papersource "Tray 1" -printer "docPrint" D:\test.pdf

pdfprint.exe -firstpage 1 -lastpage 1 -papersource "Tray 2" -printer "docPrint" D:\test.pdf

The first command line will print first PDF page to Tray 1, the second command line will print the first PDF page to Tray 2, so you may run these command lines to try again.

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How to use a composite stamp to include both Image and Text contents with PDFStamp Command Line application?

Hi

We are considering purchasing a license for your PDF stamper tool and we are wondering;

Is it possible to have a composite stamp (i.e. that is an image but can feature some text elements also) that would be similar to the attached?

image

Many thanks
Customer
--------------------------------------------
Thanks for your message, if you are using PDFStamp Command Line software, you need to stamp Image and Text contents separately, you need control their positions by yourself.

However, we suggest you may use VeryPDF PDF Toolbox Command Line software, please look at following web page for more information,

http://www.verypdf.com/wordpress/201305/overlay-pdf-files-by-pdf-toolbox-36248.html

You can make a PDF file with image, text and input boxes, then you can overlay this template PDF file to original PDF file, for example,

pdftoolbox logo.pdf -overlay content.pdf -outfile "_overlay_out.pdf"

image

We hope pdftoolbox.exe application will work better for you, you may download it from this web page to try,

http://www.verypdf.com/app/pdftoolbox/try-and-buy.html#buy
http://www.verypdf.com/dl.php?file=pdftoolbox_cmd_win.zip

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I want to set pdf expiration date to all my pdf documents.

I want to set pdf expiration date to all my pdf documents.

Customer
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image
Thanks for your message, VeryPDF has two methods to set expiration date to PDF files,

Solution 1:
You can use "Javascript to PDF Embedder Command Line" to insert a Javascript expiration function into PDF file, you may download "Javascript to PDF Embedder Command Line" from this web page to try,

http://www.verypdf.com/app/javascript-to-pdf-embedder-cmd/try-and-buy.html
http://www.verypdf.com/dl2.php/addjs2pdf_win.zip

Please look at following web page for more information,

http://www.verypdf.com/wordpress/201602/how-to-protect-pdfs-with-setting-expiry-date-42227.html

Solution 2:
You can use "Cloud PDF DRM Protector" software or "VeryPDF Cloud DocSafe :: Online PDF Protector" to set expiration date to PDF files, "Cloud PDF DRM Protector" software can be downloaded from this web page,

http://www.verypdf.com/app/cloud-pdf-drm-security/try-and-buy.html
http://www.verypdf.com/dl2.php/PDFDRMProtector.zip

"VeryPDF Cloud DocSafe :: Online PDF Protector" can be evaluated from this web page, this is a Cloud Based Online application, you can test it online directly,

http://drm.verypdf.com/online/

image

You may also look at following web page for more information,

http://www.verypdf.com/wordpress/201408/expire-pdf-on-a-specific-date-by-verypdf-javascript-to-pdf-embedder-command-line-40943.html

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