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Thanks for your answer.<br />
<br />
I use ASPOSE.CELL to make excel file, then save it in PDF. I'll use flate it look it is the best as it it primary text and my test shows that it provide best size.
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Thanks for your answer.

I use ASPOSE.CELL to make excel file, then save it in PDF. I'll use flate it look it is the best as it it primary text and my test shows that it provide best size.

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Accepted answer: 0 points for dvplayltd's comment <a href="https://www.experts-exchange.com/questions/28615431/What-compression-I-should-use-for-my-app-created-PDF-files.html?anchorAnswerId=40607316#a40607316" rel="ugc">#a40607316</a><br />
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for the following reason:<br />
<br />
10x.
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I've requested that this question be closed as follows:

Accepted answer: 0 points for dvplayltd's comment #a40607316 [https://www.experts-exchange.com/questions/28615431/What-compression-I-should-use-for-my-app-created-PDF-files.html?anchorAnswerId=40607316#a40607316]

for the following reason:

10x.

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An answer was provided. Please review the the instructions to properly close a question.
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An answer was provided. Please review the the instructions to properly close a question.

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<div class="content wysiwyg-content">
Dear experts,<br />
<br />
My application create PDF file and I can use these method of compression. <br />
&nbsp; &nbsp; &nbsp; &nbsp; None = 0,<br />
&nbsp; &nbsp; &nbsp; &nbsp; Rle = 1,<br />
&nbsp; &nbsp; &nbsp; &nbsp; Lzw = 2,<br />
&nbsp; &nbsp; &nbsp; &nbsp; Flate = 3,<br />
<br />
The PDF files are text primary and have picture only for company logo. By the way, what is the best format of pictures (.jpg,png, bmp) to get best result with both problem free and smaller size?<br />
<br />
Which method I should use in order to:<br />
&nbsp;1)Be sure that all users with any Windows, iOS and any other popular OS and any version of PDF reader will read it correctly?<br />
2) To reduce the file size
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Dear experts,

My application create PDF file and I can use these method of compression. 
        None = 0,
        Rle = 1,
        Lzw = 2,
        Flate = 3,

The PDF files are text primary and have picture only for company logo. By the way, what is the best format of pictures (.jpg,png, bmp) to get best result with both problem free and smaller size?

Which method I should use in order to:
 1)Be sure that all users with any Windows, iOS and any other popular OS and any version of PDF reader will read it correctly?
2) To reduce the file size

What compression I should use for my app created PDF files???

Adobe Acrobat is a family of application software and Web services developed by Adobe Systems to view, create, manipulate, print and manage files in Portable Document Format (PDF). The family comprises Acrobat Reader (formerly Adobe Reader), Acrobat (formerly Acrobat Exchange) and Acrobat.com. The commercial proprietary Acrobat, available for Microsoft Windows and OS X only, can also create, edit, convert, digitally sign, encrypt, export and publish PDF files.

Adobe Acrobat

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.NET Programming

Microsoft Office is an integrated suite of applications that includes Outlook, Word, Excel, Access, PowerPoint, Visio and InfoPath, along with a number of tools to assist in making the individual components work together. Coding within and between the projects is done in Visual Basic for Applications, known as VBA.