The Pdf2image library returns a list of image objects of type or for a given PDF based on the chosen format. The following pip command can be used to install the library, pip install pdf2image The pdftoppm library utilizes the poppler to execute the conversion. This is the python library which calls the pdftoppm library to convert a pdf to a sequence of PIL image objects. Refer Installation-2 for installing Poppler. This library forms the core for utilities like Pdf2Image, PdfToText, and PDFToHTML which deals with PDFs. The Poppler is a PDF rendering library that is based on the xpdf-3.0 code base. Refer Installation-1 to properly install python. A python 2.7 or 3.3+ forms the primary requirement. We are going to use a pythonic way for achieving the conversion. Installation Stepsįor accomplishing this task, we are going to utilize certain utilities and libraries. Can we convert a PDF to a sequence of images? Yes, we can and this forms the intention of this article. Is PDF a suitable format? No, the images are the best mode of information for image processing. Can we automate this work? Yes, we can do it through image processing. Let us imagine a situation in which we have The Invincible Iron Man comic available in PDF and we are trying to identify the pages which have the Iron Man in action. If you want to know the best settings (most settings will be fine anyway) you can clone the project and run python tests.py to get timings.The picture sums up the motivation behind this article.PNG format is pretty slow, this is because of the compression.If i/o is your bottleneck, using the JPEG format can lead to significant gains.Using multiple threads can give you some gains but avoid more than 4 as this will cause i/o bottleneck (even on my NVMe SSD!).Otherwise i/o usually becomes the bottleneck. Using an output folder is significantly faster if you are using an SSD.use_cropbox parameter allows you to use the crop box instead of the media box when converting ( -cropbox in pdftoppm's CLI).strict parameter allows you to catch pdftoppm syntax error with a custom type PDFSynta圎rror.transparent parameter allows you to generate images with no background instead of the usual white one (You need pdftocairo for this).tiff files (You need pdftocairo for this) Fixed a bug that left open file descriptors when using convert_from_bytes() (Thank you fmt='tiff' parameter allows you to create.Fixed a bug where PNGs buffer with a non-terminating I-E-N-D sequence would throw an exception.Allow the user to specify poppler's installation path with poppler_path.single_file parameter allows you to convert the first PDF page only, without adding digits at the end of the output_file.Images will be a list of PIL Image representing each page of the PDF document.Ĭonvert_from_path(pdf_path, dpi=200, output_folder=None, first_page=None, last_page=None, fmt='ppm', thread_count=1, userpw=None, use_cropbox=False, strict=False, transparent=False, single_file=False, output_file=str(uuid.uuid4()), poppler_path=None)Ĭonvert_from_bytes(pdf_file, dpi=200, output_folder=None, first_page=None, last_page=None, fmt='ppm', thread_count=1, userpw=None, use_cropbox=False, strict=False, transparent=False, single_file=False, output_file=str(uuid.uuid4()), poppler_path=None) What's new?
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