There are a few similar post here on SO, but they do not cover my issue. I am using the following script to crop a PDF to its visible content. ### crop a PDF to visible objects import fitz # PyMuPDF def crop_pdf_to_visible_content(input_pdf, output_pdf): # Open the input PDF doc = fitz.open(input_pdf) for page in doc: # Get the text blocks to determine the visible content text_blocks = page.get_text("dict")["blocks"] if text_blocks: # Initialize variables to store the minimum and maximum coordinates min_x = float('inf') min_y = float('inf') max_x = 0 max_y = 0 for block in text_blocks: if "bbox" in block: x0, y0, x1, y1 = block["bbox"] min_x = min(min_x, x0) min_y = min(min_y, y0) max_x = max(max_x, x1) max_y = max(max_y, y1) # Set the cropbox to the bounding box of the visible content rect = fitz.Rect(min_x, min_y, max_x, max_y) page.set_cropbox(rect) # Save the output PDF doc.save(output_pdf) doc.close() input_pdf = "Test.pdf" output_pdf = input_pdf[:-4] + "_crop.pdf" crop_pdf_to_visible_content(input_pdf, output_pdf) ### end of script This works fine for text: original: cropped: However, apparently, for music symbols this doesn't seem to work correctly. original: cropped: My suspicion is that the shapes close to the borders might be described as curves with control points and the file might be cropped at the control points, but not including the full shape. I cannot tell in advance how much space is needed, so, to add an additional fixed "safety" margin would not help and other files would then get a too wide margin. Any ideas how to work around this? Continue reading...
