Unfortunately, the tool isn’t usable for me due to You're invited to talk on Matrix, so I can’t test any advice provided yet. Regardless, I would like to confirm that when I convert a TIFF file to an OCR PDF,
the PDF retains the original TIFF image
at its original quality (not upscaled or downscaled)
and with all of its metadata (at least, all which can be stored inside a PDF, so not none, and hopefully the rest transferred into the PDF)
inside it rather than stripping it and converting it into a different image type.
If you wonder why I ask, imagine if converting an OGG file into a FLAC or MKV container removed the attributes and degraded the quality of the file by converting it into something like an MP4, merely wrapped by the aforementioned container files. It would of course be unacceptable to any audiophile.
We need to gather the technical details in order to answer your questions. Therefore, an investigation ticket as OCRNET-765 has been generated in our issue tracking system to carry out the investigation. We will look into its details and let you know as soon as the ticket is resolved. Please be patient and spare us some time.
Unfortunately, we can’t guarantee that all metadata will be saved in the output PDF. But we try to create an output PDF with the same original size and resolution. You can test our solution and decide it is suitable for you.
Thanks for the feedback. We have kept the ticket open for further investigation and we will soon return to you with the feedback against your recent comments.
to Convert TIFF image to searchable PDF online. The resultant PDF does not appear to be searchable. Additionally, its resolution is not even comparable to that of the original.
Thanks for providing the sample input. Online Aspose App implements Aspose.OCR Cloud API. However, this information will definitely help us in understanding your requirements more clearly and implement them in On-Premise API. We will let you know once some progress is made towards the resolution of the logged ticket. Please spare us some time.
Hi, I’m a developer of the Aspose.OCR team (downloadable libraries). I converted your TIFF file to PDF using our library. You can evaluate the result in a PDF file. I can’t transfer your additional information from the TIFF file, but the size, physical size and resolution are the same as in the TIFF file.
Also, I want to note that we do not support all TIFF file formats, and we may not support some specific formats. However, we work with the majority.
Please use our download library to test your files and share your thoughts.
The code and the output PDF are attach tiff_pdf.pdf (150.7 KB)
AsposeOcr api = new AsposeOcr();
License lic = new License();
lic.SetLicense(@"Aspose.OCR.Product.Family2024.lic");
PreprocessingFilter filter = new PreprocessingFilter
{
//if you need
// PreprocessingFilter.AutoSkew()
};
OcrInput input = new OcrInput(InputType.TIFF);
input.Add("your.tiff");
var result = api.Recognize(input, new RecognitionSettings
{
DetectAreasMode = DetectAreasMode.PHOTO
});
AsposeOcr.SaveMultipageDocument("D://result.pdf", SaveFormat.Pdf, result);
but regardless, they’re definitely all lower (as the converted PDFs demonstrate versus the original) and that black and white border certainly weren’t there beforehand — it’s as if they’be been converted to JPEG (non-XL) and back to TIFF.
Regardless, I’m incredibly thankful for the code excerpt.
Thanks for the feedback. The ticket status is still open and we will further try to improve the functionality while keeping your comments in view. We will update you here once we have some more updates to share.
