Office software is closely linked to the PDF,the PDF is also must have to control!
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Followed by the object of all the cross-reference table below: xref 0 8 0000000000 65535 f 0000000009 00000 n 0000000074 00000 n 0000000120 00000 n 0000000179 00000 n 0000000322 00000 n 0000000415 00000 n 0000000445 00000 n xref that a cross-reference table to start, cross-reference table the first line of 0 8 indicate the following description of the target line number is from 0 to start, and eight objects. 0000000000 65535 f, each PDF document are general in order to cross this line to start the application form indicating the start address of the object 0 to 0,000,000,000, resulting in its (generation number) to 65535, also produced the greatest number, can not change, And that is the final object f, that the object for free, here, we can see that, in fact, this object can be seen as a file header. 0000000009 00000 n is that the object 1, that is, the object catalog, and its offset address 0000000009, 00000 to have a No. 5 (maximum 65535), 0 indicates that the object has not been modified, n said that the object in use, the difference between and free objects, not be changed. The following few lines I believe we will be able to tell me the meaning of the. Trailer << /Size 8 /Root 1 0 R >> startxref 553 %% EOF trailer Documentation of the beginning of the end of the target trailer. /Size 8 shows that the target number of PDF documents. /Root 1 0 R that the object of the root object No. 1. Startxref 553 cross-reference table that the offset address, so that we can find a PDF document of all the object of the relative address, then access object. %% EOF for end-of-file marks. 6.2. PDF analytic process
Figure 4 7. Conclusion: |
