পিডিএফ: সংশোধিত সংস্করণের মধ্যে পার্থক্য

| 1.0 || First || 1993১৯৯৩ ||<ref name="pdf-reference-10">{{citation | url = http://acroeng.adobe.com/PDFReference/PDF%20Reference%201.0.pdf|title=Portable Document Format Reference Manual| author = Adobe Systems Incorporated |date=June 1993 |accessdate=2015-06-17}}</ref> || Carousel

| 1.1 || First, revised || 1996১৯৯৬ || || 2.0

| 1.2 || First, revised || 1996১৯৯৬ || || 3.0

| 1.3 || Second || 2000২০০০ || || 4.0

| 1.4 || Third || 2001২০০১ || || 5.0

| 1.5 || Fourth || 2003২০০৩ || || 6.0

| 1.6 || Fifth || 2004২০০৪ || || 7.0

| 1.7<br/>(ISO 32000-1:2008<br/><ref name="iso-standard"/><ref name="pdf-ref"/>) || Sixth (ISO first) || 2006২০০৬ (ISO 2008) || || 8

| 1.7 Adobe Extension Level 1<ref>{{citation |url=http://partners.adobe.com/public/developer/en/xml/xfa_spec_2_6.pdf |title=XML Forms Architecture (XFA) Specification Version 2.6 |date=2008-01-25 |accessdate=2014-04-09}}</ref> || || 2008২০০৮ || || 8.1

| 1.7 Adobe Extension Level 3 || || 2008২০০৮ || || 9

| 1.7 Adobe Extension Level 5<ref>{{citation |url=http://partners.adobe.com/public/developer/en/xml/xfa_spec_3_0.pdf |title=XML Forms Architecture (XFA) Specification Version 3.0 |date=2009-03-12 |accessdate=2014-04-09}}</ref> || || 2009২০০৯ || XFA 3.0 || 9.1

| 1.7 Adobe Extension Level 6<ref>{{citation |url=http://partners.adobe.com/public/developer/en/xml/xfa_spec_3_1.pdf |title=XML Forms Architecture (XFA) Specification Version 3.1 |date=2009-11-16 |accessdate=2014-04-09}}</ref> || || 2009২০০৯ || XFA 3.1 || 9.1

| 1.7 Adobe Extension Level 8<ref>{{citation |url= http://www.pdflib.com/fileadmin/pdflib/pdf/manuals/PDFlib-8.0.2-API-reference-Windows.pdf |format= PDF |title= PDFlib API Reference 8.0.2 |quote=1.7ext8 – PDF 1.7 extension level 8 requires Acrobat X |accessdate= 2011-03-07}}</ref> || || 2011২০১১ || XFA 3.3 (e.g. Flash/SWF integration in XFA),<ref name="xfa33">{{citation |url=http://partners.adobe.com/public/developer/en/xml/xfa_spec_3_3.pdf |title=XML Forms Architecture (XFA) Specification Version 3.3 |date=2012-01-09 |accessdate=2014-04-09}}</ref> AES-256 different password handling than in Extension Level 3, because of a weakness in the password checking algorithm.<ref>{{citation |url=http://www.pdflib.com/knowledge-base/pdf-security/encryption/ |title=PDFlib - PDF Security - Encryption Algorithms and Key Length |accessdate=2012-09-26}}</ref><ref>{{citation |url=http://www.pdflib.com/knowledge-base/pdf-security/recommendations/ |title=PDFlib - PDF Security - Security Recommendations |quote=AES-256 according to PDF 1.7 Adobe Extension Level 3 (Acrobat 9) should be avoided because it contains a weakness in the password checking algorithm which facilitates brute-force attacks against the password. For this reason Acrobat X no longer offers Acrobat 9 encryption for protecting new documents (only for decrypting existing documents). In summary, AES-256 according to PDF 1.7 Adobe Extension Level 8/PDF 2.0 or AES-128 according to PDF 1.6/1.7 should be used, depending on whether or not Acrobat X is available. Passwords should be longer than 6 characters and should contain non-alphabetic characters. |accessdate=2012-09-26}}</ref> Specification not published as of November 2014.<ref name="pdf-ref" /> || X (10)