[Solved] TIF to PDF: huge file size

[Peter2]

I converted TIF to PDF.
Filesize of TIF: 150 - 250 kB
Filesize of PDF: 17 -18 MB

And changing the settings (LZW, FAX, ZIP, ..) has no result - all the files are the same, only date and title are different.

Peter

PS: Optimizing the files with PDF Tools reduces the size vom 17 MB to 310 kB.

[Peter2]

Hello Pierre

some comment? Here is an excellent tool to convert "Image to PDF": http://noliturbare.com/

Peter

[Peter2]

...And changing the settings (LZW, FAX, ZIP, ..) has no result - ....

Fixed. Here are the results for "Convert TIF to PDF with different settings":
I like the JPEG-result ...

Code: Select all

1.TIF                   7630
1_FAX.pdf               8518
1_JPEG.pdf          33056585
1_LZW.pdf              62235
1_Packbits.pdf        477080

2.TIF                   7640
2_FAX.pdf               8528
2_JPEG.pdf          44090069
2_LZW.pdf              71136
2_Packbits.pdf        616672

3.TIF                   7678
3_FAX.pdf               8568
3_JPEG.pdf          88209506
3_LZW.pdf             106027
3_Packbits.pdf       1165159

4.TIF                   6196
4_FAX.pdf               7083
4_JPEG.pdf          20420930
4_LZW.pdf              45414
4_Packbits.pdf        307100

5.TIF                   6077
5_FAX.pdf               6959
5_JPEG.pdf           9887313
5_LZW.pdf              35191
5_Packbits.pdf        173673

6.TIF                 193596
6_FAX.pdf             194493
6_JPEG.pdf         154759609
6_LZW.pdf             360668
6_Packbits.pdf       2427880

7.TIF                 341311
7_FAX.pdf             160111
7_JPEG.pdf         183790959
7_LZW.pdf             381041
7_Packbits.pdf       2715418

8.TIF                  25176
8_FAX.pdf              25969
8_JPEG.pdf          21964987
8_LZW.pdf             125899
8_Packbits.pdf        462485

Peter

[xnview]

Strange for the jpeg, is it a RGB picture?

[Peter2]

Strange for the jpeg, is it a RGB picture?

No, a black/White scan with 400 TIF.

Peter

[xnview]

Strange for the jpeg, is it a RGB picture?

No, a black/White scan with 400 TIF.

Ok, so it's normal, JPEG convert it in greyscale