Can this material handle freezing temperatures?, I want to use them for product labeling on top of plastic bag. The product is store in freezer at a maximum of 2 months. Does it keep it's adhesiveness after being freezed or refrigerated?

The White Gloss Laser (WS) is a paper-based material so it is not normally recommended for use in freezer or refrigerated applications. However, once applied it can withstand temperatures from -75° F to +200° F. For a freezer application, we'd recommend our weatherproof materials at the link below: https://www.onlinelabels.com/materials/weatherproof-labels

are the 4 x 7 labels acid free

It is our understanding that there are currently no regulations relating specifically to pressure-sensitive label materials being used in archival applications. The facestock of the Standard White Matte (WX) complies with the NSI/NISO Z39.48-1992 for "Permanence of Paper for Publications and Documents in Libraries and Archives". Claiming that any adhesive is definitively safe for archival purposes is difficult because there’s no accurate method of measuring the acidity of an adhesive once it’s been applied to a label product. The OL1252WX utilizes an emulsion acrylic adhesive rather than a rubber-based adhesive, making it better suited for archival applications. Emulsion acrylic adhesives do not yellow or degrade to the level that rubber-based adhesives do. The adhesive is also water-based and does not include any of the oils used in the compounding of rubber-based adhesives. In addition, the adhesive has passed the Photographic Activity Test (per ISO-18916), which specifies that it is compliant and graded for use in photo-storage applications. If you have any other concerns or questions regarding the materials, you're welcome to reach out to Customer Support at 888-575-2235.

Why doesn't it give me the option to have these professionally printed?

We do not currently offer custom printing on our large-format sheets. However, you can visit the link below to review our options for standard 8.5" x 11" sheets that include printing. https://www.onlinelabels.com/custom-sheet-labels